Its a subjective question. What I consider good service may not be the same for you, what I find attractive you may not..
Its best to try the places yourself discover what works best for you. We can help you with what to expect at a place by putting up reviews and info, but we cannot know if you will have the same experience or even like what we (or I) like.
Check out what has been posted on the spas in the area you will visit and make a judgement call based on what you know is to your liking.