We stayed in a one bedroom apartment in Siana 2, which suited our every need. The whole complex is clean and tidy and well maintained. All the other people who stayed on the complex where very helpful & friendly. The swimming pool was a fabulous size, and very refreshing. The beautiful sandy beach is only about a 100 yards away, and the sea was fabulously warm. The restaurant on site are extremely friendly, and food is great....and so cheap compared to other countries I've visited. Up at Vlas Square, a short walk away, is a multitude of restaurants and shops. Sveti Vlas is still very cultural, and the walk is full of interesting things to see - very Bulgarian! Along the sea front is the Marina, a modern contrast to the Square. Here you can enjoy a more salubrious feel, and some fine dining.
All in all a great vacacion and will definately return.