It was a rough start with ToLoveRu because it seemed that everything in it was stolen from other animes. The ending, was almost equally as rough as the beginning. At one point, I almost shout out "Cheater" to the screen when it looked like it's going to end in a very cheap way, but the last moment saved it from being what I considered "cheap" ending.
Overall, it's an interesting anime when you follow it episode by episode, because it provides some non-sense comical relief to some other series. If you watch it all together at once, I'm not sure you'll get same satisfaction, because its repetitive nature.
Final scoreboard (out of 5):
Drama: 3 (Not quite its focus)
Comedy: 4 (Some outrageous comedies, but a bit overly repetitive)
Action: 3 (Not quite its focus either)
Art/Animation: 4 (Lala is cute...:-))
Sound/Music: 3 (Nothing left big impression)
Character: 3.75 (Not exactly rich, but quite a few)
Plot: 3 (Pretty retarded)
Ending: 3.75 (Almost a "cheap" ending)
Re-watch value: 2 (I don't see any reason to)
Overall (not average): 3.5 ~ Above Average Comedy
Recommendation: If you do end up watching it, I recommend to watch it in multiple segments, because it will get old pretty quick if you just keep going.