I bought a San Marcos 48 from a Spa Expo. It belongs to Sensations Spa (Diamante Spa service). The Spa is very nice but it was leaking when switched on very first time. Obviously they don't test it with water on. The other thing is that it is very difficult to get a service, especially if you live in Northern California. I've been trying almost two months to get the leak fixed but as it turns out there are multiple leaks and very slow service. Please, pay attention to how they test the spa prior delivery and do they have a local service.