Personally I think it is a little expensive for what you get. The location is excellent, and by all reports the staff are good (but that has been eratic over the years). The did a bit of an upgrade about 5 years ago, put a pool in and fixed up some rooms, and doubled their prices.
Personally I think Beach Club Senggigi, which is a similar price, is much better value. The rooms are nicer, however Windy does have the best bit of beach in Mangsit, and Windy does not get as much road noise as Beach Club.