After two months reading dayly I consider the T68 the best option for me. I have lots of devices, including Kobo AURA HD and Paperwhite 2. The touchscreen is the only thing I'm not totally happy with, but it is not that painfull. Indeed since the last update it is more accurate...
In my case, the more I use it the more I charge it and the more the battery seems to last. Last time, two weeks after a long and intense use: at least one hour per day...
Never had any issues with WIFI so... I can't complain
I'm very happy with it, and even having Aura HD and PW2 at hand I always read on it.