I have a Kevo 2 lock for 9 months now.  It's a good lock but can be great with a few changes (see below)

- Installation: Not as simple as it seems but not difficult.  Took about 30 minutes.  Had an issue with the screw but contacted support and support provided a new set of screws quickly.  Support was awesome.  Love the ability to "re-key" so I use can my existing keys.  

- Usage: Deadbolts lock very smooth from the inside. Able to use my phone to lock from the outside with no issues.  Set up on grandma's iPhone and now she loves the keyless entry.  Love that it's no unlimited virtual keys.

- Improvement opportunities (to make this a great lock)
1.  faster response time from the iOS app.  Sometimes have to wait while the iPhone connects to the lock
2.  Better fit - my lock fit isn't perfect.  My kevo 1 fit was perfect.