From the first day, it had the known issue with disconnections. You lose the signal and that's it. It doesn't reconnect again. 5 times in 4 days. It went for a return.

Very good! I have been using it for a week now in my country house and it works flawlessly. The speeds it reaches are better than my mobile, which I didn't expect. I don't know if I did the right thing by paying extra to get the 4G+ instead of the cheaper 4G, but for now, I am completely satisfied. I use a SIM Nova and consistently get 25-30mbps download and 10-15mbps upload. I should note that I got the v1 version as it was cheaper than the newer versions, probably without any significant benefit. Also, surprisingly, the MR500 v1 is a later model than the MR600. Only the MR600 v3 is from around the same year (2022). Anyway, get whichever you find cheaper as they are exactly the same for the average user.

The router, in general, is good.
Don't expect crazy download and upload speeds. They are simply satisfactory.
In the OOCLA speed test, it gives similar speeds to a decent smartphone.

What is important is that the internet connection is stable, unlike the disease called VDSL. The response during browsing is instantaneous.

The WiFi is very satisfactory.

I am considering canceling the VDSL and getting a subscription with a SIM card, with unlimited data.

To have a comparison:

Current VDSL line:
Nominal speed 100 Mbps
Actual speed 80 Mbps (speedtest) (1)
Real perceived speed 40-45 Mbps (1)
Frequent interruptions, to an annoying degree. I can't watch online TV because the interruptions drive me crazy.
Response during browsing is so-so.
Cost 26 euros/month (1)

TP-LINK MR500
Actual speed 70-80 Mbps Down 24 Mbps Up (speedtest - I have reached up to 140 Down and 46 Up during late hours) (1) (2)
Real perceived speed 70-80 Mbps (1) (2)
Response during browsing: Instantaneous (2)
Cost 37 euros/month (SIM with unlimited data) (1)

Personally, I am thrilled.

The evaluation refers to the TP-LINK ARCHER MR500 V1.

Comments:

(1) I do not mention the names of telecommunications providers because I do not wish to advertise or defame anyone.
(2) The speeds of the MR500 depend, naturally, on the location of the house, the walls, the distance from the mobile phone antennas, the time of day, the weather conditions, etc. Even within the same space, placing it in different positions gives different speeds.
Before purchasing, test the speeds in your area with a mobile phone. The MR-500 will give you a speed that is 10-15% lower compared to a mid-range priced smartphone.

After the first week of operation, it disconnects from the internet and requires a restart. Then, it needs to be restarted every two days. The replacement product presented the same issue. The above concerns product version 1.