We did a week out of Agana (near Split) about 5 years ago. Fantastic!! Nothing like BVI or Caribbean generally, but just as excellent. Definitely different winds...much influenced by the coastal mountains. We bare-boated but decided to hire a captain and were very glad we did. Mostly bc he was a great tour guide, got us the choice spots along the town quays, but also he knew where to go when the wind and weather got crazy. The extra was cost very reasonable and well worth it.
Have fun.