Magda offered me an appointment very quickly (next day). She was lovely and able to speak English very well. I did a brazilian waxing with her which went professionally and I was very comfortable at her place. Everything was clean and the prices are reasonable. To summarize: I would book again! Mil gracias Magda, muchos besos!
P.S. Google maps does not show the location right. You have to drive a bit more into Uvita, cross the bridge and turn right after the bank (Banco de Costa Rica) on your right hand side. Drive ahead and you will find her studio on the left side of the street.