instantaneous/storadge hybrid wtrhtr

anybody put in one of these yet?

http://eternalwaterheater.com/

Our company just found out about these and the contractors personal use discout, will be installing mine in about 1 month = I'll let everyone know.
luck dan
P.S. seems like a good design.

Had several with bad electronics from a few years ago but haven't installed many recently, so maybe the problems fixed. All of them were covered under warranty though.