Will the marina accept super yachts? This looks like another hotel that wants to capitalize on all the luxury yachts that are frequenting the Adriatic lately. I visited the new Regent Porto Montenegro
http://www.regenthotels.com/EN/Porto-Montenegro last summer which has a deepwater bay for the super yachts. And there are more on the Croatian islands. Lots of rich Russians yachting about there these days. They've even set up Russian grocery stores and such next to these luxury hotels.
Otherwise it might be nice to visit on the way to Ljubljana.