Normally dont chime in much, but doubt too many people have been there but I went there about a year ago..
Really great lagoon kiting, some great sand bar mazes to kite through, but need to hire a boat to get to the other side of the lagoon to get where the goods are and to do downwinders. It would add up quickly at 100$US/day. IF you get unlucky and dont get wind, the surfing sucks.. terrible reefs and the waves are not that great, and not very powerful. It would be ok for a longboard or SUP at best, but it does take a massive NW swell to get down there and those are non existent in June/July.
Nothing on the island for fun, just a shack or two to crash in..There is one 'real hotel' but didnt check it out. Really dont recommend it for much other than bone fishing, especially for the price of getting there.
MRU is awesome, Cocos is great. Fiji/Namotu/Tavarua are BEST EVERS!
Here's a video I did from my trip.
Good luck and have fun
Aloha,
Reo