Excellent for the money it asks, it would be good to have an indication of the battery level so that you don't have to open the application to check. I should add that it is very easy to carry, it fits in your pocket without being bothersome!

It is excellent and value for money. Its signal is strong and its battery lasts about 4 hours. Personally, I had it connected to the battery most of the time to avoid signal issues. I had 2 laptops and 2 mobile phones permanently connected to it and it was flawless.

Installation was made in a shady spot in the countryside with a sim card for unlimited MB. It has a huge issue with its battery.
1. It doesn't work for more than 8 hours, maybe 5.
2. We would plug it in for charging and check the app to see if it was charging or if the battery percentage had increased, but it wouldn't go up (we tried 3 different chargers in case it was a charger issue, and also tried restarting the app in case it was frozen). Within 3 days, we managed to charge it twice up to 80%.

Absolutely satisfied with the router. Bought it for around 40€ and using a Cosmote Unlimited SIM card. Easy to use and easy connectivity. It's 4G and personally, its speeds are sufficient for me. It has occasional but negligible disconnections. Quality construction despite being made of plastic. Small in size, about the size of a pack of cigarettes. Easy to carry with you everywhere. It did not show signs of overheating even when used in a warm environment. Charges relatively quickly but the battery life is average. It barely lasts for 6 hours of continuous operation, especially with heavy usage (2 devices connected). It has a power-saving mode and turns off if no device is connected within the time you set through the app. The app is useful and easy to operate, showing battery level and other necessary information. Overall, excluding the battery life which I consider to be average, it is excellent and I would buy it again.

It's worth it! ... definitely needs to install the app to monitor the battery.
On the negative side, only one:
sometimes it disconnects for a few seconds, but if you're playing online, it annoys you.
Maybe it's also the company's signal sometimes.
Generally satisfied! Get it if you find it for under 50€

I put a wind unlimited data card (bought from Omonia), easy to use, as soon as I inserted the card it worked immediately. It has connectivity up to about ten meters and the battery lasts around 6 hours. The only negative aspect is that it takes a while to charge. Overall, I am satisfied and I recommend it.

Although I prefer tp-link whenever I have the chance, this particular product, in its main characteristic, internet speed, is very mediocre. It has significantly lower speeds than my mobile at the same location with the same mobile company. Both are 4G (not 5G), my mobile reaches 100-150 Mbps download while the tp-link reaches 20-25 Mbps when its capability is up to 300 Mbps, so theoretically it should be able to reach the same speed as my mobile. I don't know if it's a general phenomenon with 4G modems, the inferior connection speed, but this specific one definitely disappointed me.

It is good, just sometimes my device disconnects from it!
Otherwise, it is pretty good!

I only use it in August for 2 years. Suddenly, this year in the 3rd year, the devices stopped connecting to the internet. In total, it has worked for 2 months and 7 days before giving up.

It works perfectly!!!
I am very satisfied with both the coverage and the software on my mobile.
In fact, I connected it to a router that supports USB connection for LTE devices and it worked PERFECTLY!!

So far, the watch is working fine!
It could be a bit cheaper, but it's okay.
The only thing that needs attention is the following:
Never connect it to the computer for charging while it's turned on because it connects directly to the internet from it!
I'm still crying for the 20GB that the utorrent sucked up like water.

Update: 28/3/2020
1.5 years after purchase, it's difficult to open because the button doesn't work properly.
There are times when the WiFi shuts off on its own, and with a mobile phone in the same spot on 4G, it drops to 3G.