I'm not sure how much research you do, but I think you need to check on a few things:
1) The lock. I had August locks, and have been replacing with Level Locks or Friday Home. The reason is that whilst August is great for a single person home, the integration with HK is terrible and I could never get the locks to work through HK for more than just myself... and that's with the support of August.
Level Locks are very discreet as they are inside the door so it doesn't even look like you have a smart lock!
2) Brilliant doesn't work with HK. They've announced it, but it still isn't there... so how can it be a best? However, I would say that I'm looking forward to it when it does arrive.