Installs easily; no need to cut/drill on standard door cutout.  If the deadbolt doesn't freely go into doorframe, for example if weatherstripping pushes against the door when it is closed, you can adjust using the regular door handle below this unit (took me awhile to figure this out!).

Criticisms are this unit only allows one passcode at a time, although it is easy to change, and the brass color has a goldish tinge to it (the outside metal is not brass, presumably a much harder, but less lustrous metal).

The magnetic key works fine -- this lock appears bump-proof (look up lock bumping in You Tube if you want to see some scary lock opening methods!).  Additional keys are cheap -- around $12 each -- and you don't have to go to a locksmith to "key" them; you register them on your lock automatically.

I got this lock for my kids, who can never remember to lock the front door -- this one does it with a deadbolt, automatically!! --