We just returned from 2 weeks at Robinson and have a lovely stay. We were in a Garden Villa, which was very nice (I echo others comments about the rooms being rather dark, but they are still very nice and allowed for easy napping as we fought our jet lag!), our room location was perfect with easy beach access and close proximity to the dive center. We had no issues of finding beach chairs, but the resort was only half full for about 2/3 of our visit-- it was full by the end and could definitely feel the difference as it was harder to find outdoor tables at dinner and about half the guests were families as opposed to couples (but it was Xmas week, so not unexpected!)
Our primary purpose of the visit (beyond relaxation) was diving. The dive staff- Imma, Gernot, Pascal and others were a pleasure to dive with. Unfortunately, our visit overlapped with the changing of the monsoon (a little later this year than normal apparently), thus we had some rougher weather, not a ton of sun and the visibility was only okay. While the corals in the atoll were some of the best I have seen (have also dove South Ari, North Male, Indonesia etc), there was a stunning lack of fish schooling around the reefs. Hopefully it was just due to the seasonal changes and we just were unlucky- and have heard positive feedback from others whom have done a liveaboard in the atoll. But the quality of the dive sites was a little disappointing and the dive center only goes to the more challenging eastern atolls once per week (and our 2nd dive safari to that area was cancelled due to bad weather... but at least we got to go once!) Again, the dive staff was top notch and an absolute pleasure.
However, the house reef was excellent-- great snorkeling and turned out to be one of our best dives-- saw multiple reef sharks, a mobula, the most schools of fish of the entire 2 weeks!!
The staff was absolutely lovely and fun. While the bulk of the guests and staff were German (and we don't speak a word!), the staff spoke excellent english and we didn't feel as if we were missing much-- there were a few presentations that were only in German, but sometimes it's a little nice to be off in your own world! Some have mentioned that there are a handful of optional group activities-- there were more "shows", theme nights etc than we have ever experienced in the maldives and while we would not select a resort for these type activities, they were not too intrusive, but people should be aware.
The food was excellent-- the buffet and gala dinners were lovely and the quality of the food was excellent. I was still enjoying the food on the last day and there were regular changes to keep it fresh and new. As well, the dining staff was extremely gracious and attentive (although the multiple attempts to try to convince us to pay for a "romantic" dinner at the sit down restaurant did get old after a while-- I don't want to be bugged everyday to book a $100 lobster dinner!)
Overall, I think the resort was lovely, a great deal for the price point and well worth the additional domestic flight. While some have suggested it is a 5 star (I would call it a 4 star-- based on the room construction-ie furniture seems a little cheap, little things like the sheets/towels are not of very high quality-- rough and thin, pillows were a bit lumpy etc, and the island is clearly undergoing a lot of construction repairs to fix rotting boards on the decks and lots of issues from the original construction of the resort, etc)-- but I would not hesitate to recommend the resort to others based on the lovely staff, wonderful house reef and food.