Heisenberg612

I am thinking about switching to a generic card because they are so much cheaper. Does anyone have experience with these "generic" cards and have thoughts about them? They are DOLLARS cheaper per card than genuine HID cards. Here are some I found: Valuprox from http://www.idwholesaler.com identiv and schlage from https://www.proxcards.com alphapass from http://www.alphacard.com Anybody with experience with these or any other generics? We use standard 26 bit proximity, H10301. Thanks in advance for you help!