Instant hot tub

OhGizmo writes about a new hot tub liner that can give you an instant hot tub in your pool. It connects  to a backyard pool heater. The liner is like a tub floating in your pool. Excerpt: "If you’ve already got a backyard pool but at times would prefer the warmth of a hot tub then the Hot Pod is the way to go. It’s basically a floating hot tub made of flexible but sturdy “heavy duty” nylon that connects to your pool’s already existing heater system." I found this Hot Pod for $589. Any reviews yet?