If you have Schlage zwave (BE468, BE469, FE599), you may want to wait a while before upgrading to the GC3.
Older models are hit and miss, as I don’t think Schlage is even gonna invest the time in making them compatible.
http://www.schlage.com/partners/intg-feat/home/integrators/intg-features1.html?tagID=micro:prov/2gig
