4 Ch RF Controller Wireless Remote Control Arduino

I found this on ebay today

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=250448816716&viewitem=&sspagename=STRK%3AMEWAX%3AIT&salenotsupported

has any one used one? What did you use it for and how did you like it. Any info any one has would be nice, im thinking of getting it.

Thank you