The studio provides excellent value. Fantastic view, kitchenette, washer, which we used during our stay, privacy. The studio is in fact much better than it looks on the pictures, there is a flat screen TV and AC in the room. Nice cool breeze at night. It's about 20-25 min walk from the city center and the area is very safe and not bad at all as someone is describing... On your first day of arrival I'd recommend getting a cab either from Ravello bus stop (5 min ride) or from Amalfi as it would be easier with luggage, but after that no problem. Yes, there are steps here and there as there are steps anywhere on the Amalfi coast, one needs to climb up to experience the fabulous views... Owner Gregorio was very nice and helpful.
I wouldn't rent a car while on Amalfi coast - extremely narrow and winding roads. SITA bus is the way to go.