I'm holding judgment until I see the actual mechanics but I don't see a lot that I'm excited about. I have a very low gym density around me and none within walking/biking distance. I've been able to collect 100 coins a day by exploring different remote areas and finding higher level gyms of my team and prestiging them up. I had 14 gyms yesterday within a 100 mile radius of my house and 1 or 2 that were from vacation spots we visited over 500 miles away.
Having to make the rounds to care and feed pokemon in those gyms just isn't feasible. So I don't see that getting 100 coins/day will be happening which means a big hit to egg hatching which is the only way I have a chance for some of the rarer pokemon. I also don't see raids being anything that will be viable near me.
The one change I do like is the adjustment to STAB and SE moves which brings the battle strategy more in line with how the mainline pokemon games work.