Well after a bit over 3.5yrs, I was surprised by a box at my doorstep yesterday! So thought I would give my feedback on the setup.
I have a few year old Schlage lock that was compatible. I installed the lock arm through the horizontal hole and not vertically which solved normal key operations. Vertically it would retract the lock about halfway when removing the key from lock.
For the Lockitron mounting plate I had to drill the two middle holes out to 1/4in so the Schlage bolts would fit. 1/4in was spot on for a snug fit of the Schlage bolts, (BTW measured with my calipers to be sure I didn't oversize).
Lock installation took probably 15 minutes total, though I spent some time reviewing and testing, so count on maybe 30mins.
App seemed to be lagging a bit with giving timely/accurate notifications. Example, when setting up the first time it gave me some error (don't recall) but the lock was actually added to the app when I backed up to the main screen.
When connecting bridge, I had NO issues at all with the wireless configuration using my smart phone screen. Worked 100% fine first go. Though I did have some issues getting it to begin working and did not have timely or accurate status notifications just like on Bolt itself. I also had to unplug it for a bit and replug in to get it working.
My assumption is some of these issues were from a lot of new devices coming online. When I retried it all a few hours later after dinner, it was working just fine, and have had NO issues since (24hrs later).
After a quick email to support to get beta access to Alexa, this is all working great for both locking and unlocking the door.
So far, a VERY happy camper here and hope Lockitron is finally on the upswing getting the product in peoples hands.