Perhaps the main reason that Lovina's development remains stalled is the relative difficulty getting there. From the island's only airport, it's a two to three hour drive to Lovina up across the mountains at the center of the island. It's not entirely unpleasant, but after a long journey from Europe or North America, it can be a bit daunting.
The hotel owners in Lovina aren't stupid, and realize that this is their biggest weakness, so many medium and high end hotels include free transfers in their room rates. You can also arrange transport at any of the tour shops around the southern tourist areas, or for something a little more reliable, you can contact the respected Blue Bird Group regarding transfers.