Synology 2-Bay DiskStation DS223j (Diskless)
Good for: Buyers willing to read the details before deciding
Watch out for: No major red flags detected
Last analyzed: February 2026
Total Reviews
1,418
On Amazon
Verified
92%
Good
Amazon Rating
4.5
Original rating
Savinoo Rating
3.8
Adjusted rating
Our Recommendation
BE CAUTIOUS - Read individual reviews carefully, especially 1-star and 3-star reviews, before purchasing.
Analysis Summary
- MEDIUM RISK (Score: 75/100) Synology 2-Bay DiskStation DS223j (Diskless) has some concerning review patterns. Major Issues Found: 82% of reviews are either 5-star or 1-star, with only 18% in between.
- Real products usually have more balanced ratings. Positive Indicators: 92% of reviews are from verified purchases, which is good. 30% of reviews are detailed (over 100 words), which suggests genuine feedback..
Customer Reviews from Amazon
Most Helpful Review
"Performance has proven to be horrible! It is super slow. The Synology Photos app doesn’t back up my wife’s iPhone 15 Pro Max (1TB). But it works with my iPhone 14 Pro Max (512GB). I get the message in the attached screenshot indicating insufficient storage. I don’t have any quota set on any users. The Synology Photos app is super slow to load thumbnails. I bought this to avoid paying cloud storage but with these issues it’s a waste of money to buy this nas. Also when I got my first OS update it bricked my hard drives so I had to reformat and start from scratch. Also there are no immutable snapshots option in this device."
pwh
Huge amount of space. Acts as DDNS server, file server, cam viewer, Plex server. A…
Huge amount of space. Acts as DDNS server, file server, cam viewer, Plex server. A ton of features and a ton of space. Most definitely an upgrade from the last file server I had.trun
Actually a good little machine. It runs a fairly simplified linux environment with TONS of…
Actually a good little machine. It runs a fairly simplified linux environment with TONS of options.starwave
Synology never disappoints. I upgrade a bit of very old one 2 bay station and…
Synology never disappoints. I upgrade a bit of very old one 2 bay station and now it installs newer os supports. upgrade is seamless and transer all backup shared folder perfectly with no addtional set up.mike
I wanted my own NAS to back up our family files. Originally I was going…
I wanted my own NAS to back up our family files. Originally I was going to make one using some hardware I had laying around. But I simply don’t have time to build and maintain my own custom NAS. After doing some research I settled on Synology.I’ve had it for about a year now. A modest setup (2 4TB WD Reds with Raid 1 configuration) and I’ve been pleasantly surprised so far. Setup was as easy as installing the drives, turning it on, and following the prompts. Setting up Connect was simple. Accessing files through Connect or file explorer, on Windows and Linux, is seamless. I would say I was up and running within a couple of hours of starting.Plenty of onboard applications for managing files. Robust yet simple options to manage access. A nice feature is the automatic photos backup that syncs to your phone. Once configured it will back up any new photos whenever your phone is on WiFi.My only criticism is you are limited to the compatible applications offered through Synology’s catalog. I haven’t found a way to side load other applications. But that’s the price I pay for having a self maintained system that just works. Make sure you use NAS appropriate drives (like WD red). Your satisfaction and usability using non NAS rated drives will vary. Don’t use cheap drives if you care about your data. That goes for any NAS.larry
Set it and forget it. Once I configured it to my specifications it works beautifully.…
Set it and forget it. Once I configured it to my specifications it works beautifully. Cloud backups from my cellphone anywhere is awesome. Will soon get the family setup so they don't have to pay a subscription for cloud storage.doug
This thing has been working very well! Note that if the power goes out you…
This thing has been working very well! Note that if the power goes out you may lose your OS configuration if you don't have that backed up. These seem to be sensitive to power outages. I now have a UPS behind my Synology NAS keeping the power outages at bay.What Customers Talk About
Commonly Praised
Commonly Complained
Review Quality Analysis
Review quality helps identify authentic customer feedback. Longer, detailed reviews (50+ words) typically indicate genuine experiences, while high percentages of short reviews (under 20 words) may suggest incentivized or fake feedback.
Average Words
90
✓ Detailed reviews
Long Reviews
30%
Average detail
Short Reviews
0%
✓ Low brief reviews
Review Length Distribution
Authentic vs Brief Reviews
Average Word Count Gauge
Benchmark: 30 words = moderate, 50+ words = detailed & authentic
90
avg. words per review
Interpretation: Review quality appears within normal range for this product category.
Review Velocity
Review velocity tracks how quickly reviews are posted. Steady, gradual accumulation is natural, while sudden spikes or bursts (20+ reviews in a single day) may indicate incentivized campaigns or coordinated activity.
Average Per Day
0.07
Natural pace
Max in One Day
2
Normal range
Steady Velocity Detected
Reviews posted at a consistent, natural pace over time — typical of organic customer feedback.
Rating Breakdown
This chart shows how customers rated Synology 2-Bay DiskStation DS223j (Diskless). Products with authentic reviews typically show a bell curve with most ratings in the 3–4 star range. A heavily polarized distribution — many 5★ and 1★ with few middle ratings — can be worth investigating further.
Key Findings
82% of reviews are either 5-star or 1-star, with only 18% in between. Real products usually have more balanced ratings.
These findings suggest this is a trustworthy product.
Looks legit — check on AmazonReady to buy Synology 2-Bay DiskStation DS223j (Diskless)?
Our analysis is based on 1,418 reviews.
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How does this compare?
This product scores 75/100 — above average among analyzed products.
Check on Amazon