We have the August lock, plus the wifi connect module that lets us operate it from outside our own wifi network (to let others in while we're not home, etc.). We got a great deal on it from the Amazon Treasure Truck (the package is normally $280 and I paid I think $190).
So far, we like it a lot. As I was installing it, I did come to realize that my front door knob and deadbolt set (which I thought was faux antique), actually was originally equipment from the 1939, from a long-defunct lock company called Reading Hardware. The deadbolt knob assembly was not directly compatible with the August setup, but I was able to jury-rig it using some square cross-section metal stock from my local hardware store, and it works great!
The only issue that we have is we would prefer that the auto-unlock feature (which we do like) was a little bit more discriminate about waiting until our phones were in closer proximity. As it stands now, our door unlocks sometimes while we're just driving around the block looking for parking.