We stayed on top floor of the villa. Beautiful views over the sea. Can walk into Trogir in about 20 minutes, or get the boat just outside apartment for 20 kuna per person, takes about 10 minutes. Trogir is a beautiful place, and we actually preferred it to Split. Seget Donji is a lovely peaceful place, but with plenty of bars and restaurants within walking distance, and supermarkets too.
The housekeeper was very helpful, bringing us beach towels and an iron and board when we needed them. The apartment was spotlessly clean and stylish. The balcony was spacious and was lovely to sit on and enjoy the views. The patio doors and windows were all fitted with sliding net screens, so that we never had any mosquitoes inside.
There is a hotel right next to the villa with a pool, and the manager allowed us to use it during our stay, which was nice.
Highly recommended.