Spa Avania is a very nice spa with all of the amenities you could want and a wonderfully helpful and attentive staff.
Pros:
-Excellent amenities
-Incredible staff
-Beautiful private spa pool area
Cons:
-The locking mechanisms on lockers need to be replaced. The staff told everyone to "push hard on the buttons," yet I saw literally half a dozen people get locked out, myself included, because we couldn't quite get the feel of operating the buttons.
-If you order a Bloody Mary, you need to wait 20-30 minutes for them to bring it from the main hotel bar. That's a staple morning cocktail - why not just have the ingredients available at the spa bar?
Overall a definite four-star experience and one of the better spas in the area.