Anyone have experience with this? It seems simpler than the tracked robotics and maybe even better for larger freeform gunite pools...

http://aquaproducts.com/turbotjet.htm

I'm thinking this and a PoolBlaster would be a nice, reliable large pool cleaning solution for less than $1000. I'm not convinced the tracked robotics are worth the extra cost...they seem to be more trouble than good for pools with deep ends and lots of steps/benches.