Installation was as simple as screwing in a light bulb.
To set them up, I installed the Cync app and used that. I initially had a failure adding the bulbs, but later determined it was because I was attempting to name a room and a group with the same name during setup. When I retried setup and used different names, it worked flawlessly.
After setup the bulbs needed a firmware update. Ya, weird... light bulbs... firmware... The update failed on both bulbs at first - don't know why. When I went back in to try again it worked just fine and they both updated.
Adding the group to Google home was simple, but USING them is hit/miss. It looks like Google has issues talking with the Cync servers. Using the Cync app worked every time. For these particular bulbs, I really don't have a desire to use Google Home, but if I get additional interior bulbs I'll have to dig further.
I got the A21 (100W equivalent) so they were brighter, but after installing these the A19s would be fine. In fact I've set the dim to 50% they were so bright.
Changing colors and setting favorites is easy, and the animated stuff is cool. In the attached video, they go from "normal", to "candle", to "vegas", to "lava", then back to normal. You can create your own effects as well.
I'm considering replacing my kitchen bulbs with these!