I really love all the new hots keys. I've been waiting for some of them for years (like move to top/bottom of stack).
But I really have trouble with travel mode being ctrl-T instead of T. I find it annoying that I can't just hit one key to put a unit into travel mode. I in PzC, I do a T-Y (now H) -move-T combination for a lot of units, and that can be done with one hand and without hitting a button.
IMHO, give me back my "T". (Returning the "Y" would be helpful to