I bought my Pro5 in first week of dec, 2016. This was an Android version, originally. I installed Touch on one-day device. I have used Touch until apr of 2017... after it I reinstall Android...
pro: I love GUI of Touch, no ads/spy/etc, convergence was amazing, base apps are well designed and easy handling of base apps.

contra #1, overall/base: bugs and GUI/phone random reboots, no notification services
contra #2, ~400EUR phone point of view: missing apps (you know what I mean...from offline navigation to social media)
contra #3, "come on guys, it is 2017!!!" point of view: no online banking, online pay (parking/road toll/tickets/food/etc), NFC pay

So, if you have base reqs for a phone then you can use Touch, as I used it. You will love it. But before install Touch look around what apps do you need and are there required apps for Touch.