I've been using a Dex for about 6 months, exclusively, including now. It has some annoying bugs:
* you can't select text very well, only in some cases (for example in the browser address bar)
* some applications simply can't run (for example firefox mobile), but they are very few
* zoom with the scroll doesn't work in most cases (google maps)
* can't zoom in with the scroll in the browser , and when it does, the increments are very high, can't be customized and they are forgotten when you close the page.
* all pages open in mobile mode and you have to click "desktop mode" for each and every one of them that is not displayed like you want.
* reading PDFs is impossible because you can't customize the zoom (may be a deal breaker for students), and with a big monitor you get big text, not possible to read.
* most bitcoin wallets don't work with the ledger nano s on android, (I use my work computer for transactions).
But despite these, overall it's been a decent experience. I download torrents like I did on my PC, I watch movies. I have all my data with me at all times, which I like very much. I used to have a laptop but it was mostly furniture; with a small kid at home I didn't have time to even open it in most nights. And when I did have time, all I did was watch a movie or download a torrent, which is what I do with the Dex anyway.
I wish it would've had a USB 3.0 port.