The following is a brief overview of the X525 V3 frame purchased from Goodluckbuy.

Product Name: X525 V3
Product Page: http://www.goodluckbuy.com/kk-mk-x525-v3-quad-rotor-multi-rc-heli-friber-glass-foldedform-kit.html 
Purchase Price: $40.65USD
Review Date: Dec 2011

Overall a decent frame kit for the price.  The quality of the materials could be better but nothing to be concerned with. 

The spring loaded landing gear are mostly a gimmick, the amount of travel and spring strength would probably not offer any protection in a hard landing.  There may also be some concern with hooking the legs on tree or long grass, etc.

Biggest issue is with the poor packaging by Goodluckbuy and the few missing/incorrect parts.