I've been using mine for several months now. It travels with me (in my bike bag) daily (I carry the keyboard and Nexus 7 in a neoprene zip pouch). I use it as a stand for the Nexus 7 almost daily and probably type with the keyboard a few times a week.
I've not had any problems with it since I bought it.
Good to know they also have one out for the Nexus 7 (2013), too!