Near the entrance of this winsome little spa is a spotlighted chair emblazoned with “Maria Lekkakos” in bold script. Diva alert? Hardly. When the petite former Miss Massachusetts bustles into the waiting room, she lets you know her clients are the real stars here. The spa’s modest size underscores its exclusivity: a handful of treatment rooms, a single pedicure “throne,” a mini salon. Be sure to book a facial with Lekkakos herself, whose touch is nothing short of expert.