We love our Master Spa hot tub. We purchased the Michael Phelps Legend LS900 series.
It holds heat very well and the massage jets are awesome. The only problem with ours is the built in Radio/Sound System. The remote doesn't work, and it is almost impossible to control on the tub itself. You can't see the station, or even the mode it is on.
We just use it bluetooth with apps like Pandora or I Heart Radio.
The speakers are fine, its the radio part that needs improvement. All in all, the spa has provided us hours of relaxation, just be aware of the sound system issues.
Review about: Master Spas Hot Tub.
Reason of review: Damaged or defective.
Monetary Loss: $250.
Preferred solution: Radio service..
I liked: Master blaster foot jets.
I didn't like: Customer service.