Basically, it does not play videos on the website of TV channels, which seriously limits its use (in my case). OK, we can go on youtube via google app, but if that's all we can look for 650 EUR, AC is expensive for a degraded video quality.
For other Web sites, it is rather slow, occasionally ca plant - that is, we wait, we wait, we wait for the site load, and nothing happens. You can also try typing the URL in another window but it is useless. And I tried with a PC next to who charged the same site, just to make sure it was not a connection problem or the site itself. No, it is the device that is not supported.
When it works, it is quite slow, slower than my old PC I paid 400 EUR 3 years ago.
WiFi is less efficient than my old PC - smaller reception area probably because of a smaller antenna.
If not, but it is specific to Android, it is not practical - if you beings like me regulars PC, if you know the keyboard by heart and if you type without looking at your fingers, then you will suffer: it takes 5 times longer to write or fill out a form, and off very unpleasant function prediction. I guess it's for games can be a lot. But I have other things to do.
OK, there are advantages, a beautiful display, perfect workmanship and the battery use time is huge compared to a PC. But it is not worth it (or cost). So back to the sender. I'll wait a bit and buy a Ultrabook with a real keyboard, a True CPU, and a real OS.