Hydro Spas is one the spas we first considered buying when we decided we wanted a hot tub. But.....after doing the research, I wasn't too keen on them and ended up with HotSpring (Jetsetter). We also looked at Great Lakes, but again was not impressed. Look around and buy what you feel comfortable with.
What type of warranty and dealer support would you get with that tub and what are the other details?