For the past few years, I've been on board with HASS, and it's continuously improving. A huge thanks to everyone involved with HASS, including the fantastic community. I'm hopeful for a bright future because, quite literally, my home would be in darkness without it! :D
Overall the most powerful way to make your home smart. However, that "Swiss army knife" always comes with a bit of a learning curve. The current approach to move away from config files to UI really helps though
I've been using Home Assistant for a long time, but I'm about to drop it as it just breaks way too much. The most annoying part are upgrades - you have to spend around 3-7 hours fixing problems introduced by each new upgrade as HA team doesn't care about compatibility at all.
Been using for over a year. Home Assistant is The most awesome smart home hub out there.