I'm only through episode 7, the first episode was an absolute mess. Jumped around everywhere, didn't understand what was going on half the time. I was also a little disgusted with Seth Rogen and Kristen Wiig. Just seemed like they raised their hand and said "ME, ME, ME, I want to be in it!" Rogen's acting is crap and over the top, Wiig is fine but doesn't really do anything for me. Would have been better off making Tambor and Walter look younger, like they usually do.
However, once I was through episode 3, it seemed to get much of its older feel back, at least a little bit. I am definitely not a fan of the individual story episodes, I guess I understand it from a logistical standpoint getting the actors actually together, but I would much rather have had them take the time, and schedule them together so the writers wouldn't have to write around schedules, and could actually focus on a coherent story. I'm giving it a C through 7 episodes, not great, but I've seen worse rebirths.
Also have to disagree with Bru on the Futurama comeback, while they weren't amazing, and they tried way to hard recycling jokes over and over, they were still very entertaining.