Regarding Smile PC:
I think it is "alright", not awesome but not bad either, there definitely have been good moments (most of them involving Yayoi :P) and other that were just "alright". But I've learned to appreciate it for what it is: A simple yet entertaining PC series.
Even though it is far from being my fav Pretty Cure series so far (mine is Fresh PC) and the girls not being that much of my liking (my fav pretty cure so far is Erika from Heartcatch),I think it is still "ok". I hope the next PC series brings back more elements from older series.