Almost no reviewer here can have a 100% accurate opinion if they do not know how complex the quality of the line is.
From the beginning, I had some issues with the line, so I decided to try this highly praised modem-router brand.
Until I figured out what was wrong and fixed the line with the provider's help, for a whole two months, I really thought that this product had some issues. But it turned out that it wasn't the product's fault, but rather the infrastructure.
The only difference this product has is that, unlike the classic modem-routers provided by most ISPs, it has some extra features (DECT station, remote access, etc.) and lacks some others (which are usually not important for the average user). It is also usually equipped with a better processor, etc. It is configured to work with higher quality lines than the ones we have in Greece, which are mostly copper-based and provide less stability. As you can see in the image, even with such good Line Attenuation, I had to adjust it aggressively in the Line Settings to achieve a stable 100% connection. Fortunately, without losing anything from Vodafone's 100 Mbps connection, and this is only because the OTE infrastructure, although sufficient in terms of cable quality, was clearly not designed to handle the huge number of noise sources, which are often the main cause of disconnections or delays.
If your line is good in terms of noise and you don't have any issues with your wiring, this modem-router is very good and worth its price, especially for its Android applications, which allow you not only to control it from your smartphone but also to make calls as if you were using your landline while connected to it directly (even with another router in line, it can handle it without any issues, which is logical for those who understand how networks work).
The only reason I don't give it 5 stars is mainly because of some non-exposed (to the user) options that even ISP modem-routers have. On one hand, I understand why the company could do this (many reasons, but the main one I suspect is to avoid misunderstandings regarding how these settings affect each specific line and when they should be changed or not, so that the manufacturer doesn't have to deal with every poorly informed user and their complaints, which may not even be valid, simply because most of these users usually just quickly Google a solution, see a number of possible solutions that usually include changing these settings, and proceed with those changes, resulting in either more issues or no change at all, wasting valuable time for everyone in the end). On the other hand, if you happen to encounter a problem but you are someone who knows what you are doing (and what you are not) and you need access to these settings, you have no control over them with this device, and I say this from personal experience.