If you get great vibes from your short stay, you'll feel comfortable booking an appointment for more extensive services. Conduct your own 'SPAS' check of a prospective salon. If the salon meets your SPAS criteria, chances are your visit will be a comfortable one. Start with the receptionist of the salon where you can inquire about the qualifications of each salon professional. In addition to booking your appointment, the receptionist can answer questions about experience level, qualifications, areas of expertise and personal style of each of the staff.
Referrals are always a good source of information.