I use it with Zwift for general riding and Sufferfest for training. Time saver. The best workouts in the shortest amount of time during the week. Most liken to road feel. Love the the ability to rock left and right, just like riding outside.
I deliberated between different smart trainers for far too long and chose the H3 based on reviews and the fact that it's one of the few Trainer Road recommendations. I couldn't be happier with it. Pairing and updating went smoothly. It works great in both ERG and 'regular trainer' mode. It's an order of magnitude quieter than an old rear-wheel trainer, which I'm coming from. It's not a big deal connecting and removing the bike. Two months in, zero complaints.
Has been a great trainer with only a couple instances of frustration which may just be down to connectivity issues. Have had a couple brief instances where the tacx lost a connection when riding on Zwift but reconnecting via the app remedied the issue. One time, after pausing a Zwift ride, the trainer would not reconnect, no matter what I did. Turned everything off, including my wireless router to reboot Zwift/WiFi connection, and nothing worked. Unplugged the tacx overnight and it was back to normal the next day. I've not had that issue again, but I was a little nervous. That was about a month ago, and I've been using this 5/6 days a week since without any other issues, so I'm hoping it was just a hiccup.
Outside of that, the Zwift erg mode communicates well with the tacx and is a great upgrade from a wheel on smart trainer. I've been enjoying it.
I have the first generation of this trainer, the Drivo 1. A friend plugged in a 24v power supply into my Drivo which requires 12v and damaged the control board. Elite support helped me get a replacement board in a very timely manner. This for a trainer that has been out of warranty for 3 years. So if you are looking at a smart trainer you should consider what support will be available after the warranty period. My Drivo is now back online and performing perfectly.