I played for a little bit on xbox one today from a twitch beta key (everyone gets access tomorrow), not a huge fan honestly. I loved Titanfall 1 on PC, and maybe its just the console change but aiming seemed terrible, pilot movement was a tad bit slower, and titan deployment seemed to take way longer (to generate) in the two game modes I tried. Wasn't having fun at all, felt like I was getting curb stomped non stop by MLG pros or something. Everything felt "lesser" than TItanfall 1 in terms of controls and movement, but there are a ton of new customization options. Not helping that there are only like 300 players on xbox one right now so matches are taking like 5 minutes to find too.
I'm on the fence now, I play titanfall 1 every now and then and while there are only a couple hundred players online usually matches don't take more than a minute or two to pop for attrition mode, which is good enough for me. Still, with BF1 and Infinite Warfare on pre order I might cancel my TF2 pre order if they don't do a PC beta.