I just watched the last 2 episodes and I felt they were both pretty solid. Overall, despite a somewhat rocky start, I think that the 12 ep mini-season was up there with the original seasons in terms of quality. Not every episode was amazing, but they were all watchable.
They've done a handy job of converting Fry and Leela's relationship, but maybe it wasn't that big a change. Basically, it's still the case that Fry's totally in love with her, and she clearly has feelings for him, but is a little embarassed about it. That's not that big a change, and it allows their dynamic to be about the same, even if the details of the storylines is a little different.
Overall, different network and movie-hiatus aside, it's still unquestionably Futurama. Which means it's one of the best shows on TV.