I pulled the trigger on the Kwikset 914 but I cannot get them to work with Lock Code Manager at all. LCM won't even let me check the boxes next to the locks. I posted details about that issue here: Lock Code Manager - Same user, same code, multiple locks
What driver are you using for the Kwikset? Generic Z-Wave Lock? I also noticed that Hubitat doesn't auto-detect these as locks when they are discovered, so i had to manually update the driver to "Generic Z-Wave Lock":
