It's a beautiful flying helicopter. I have had one since they were first on sale and it's one of the most stable and quiet 30 size birds out there. You can build the head in the training mode by swopping two links which makes it perfect for beginners. I would get a simulator or a helpful heli pilot on board before trying to fly for the first time though
And the reason it's so cheap is that the Caliber 30 is now discontinued. So all old stock is being sold off cheap. It's been replaced by the Caliber3 now. Which is also an excellent heli
have a look at
http://www.caliber30.com/ for more info.
Ian F.