For me the first half was nice, than with Satsuki's mom things got to powerful to quick, and with Satsuki being the good guy all along it seemed rushed especially the ending. So I think while the show was good the ending was definitely rushed and could've been better.
Overall I found it enjoyable and would re-watch it over and over sometimes. So while the plot does seemed a bit rushed near the end it is enjoyable and that shouldn't be overlooked. I would definitly recommend it, not as a must watch but for those who like shows with plot that may not be the best but doesn't care.
If you are said person who doesn't understand why people who likes this show it is a simple answer. We just let it go. We enjoy the characters for them. Ryuko being a hothead, Mako's bubblyness, and others quirks.