Ergonomic chairs have been a thing for a while. Once I became an office worker, I wondered why they weren't more common. What you'll notice when you come across people with ergonomic anythings is that they're always pretty happy to let you try out whatever it is that they have. This is what happens with my Salli chair.
The first thing you'll notice is that there is an instruction sheet about getting used to your chair. The entire idea is to transition to your salli chair over the course of a week, rather than jump in and do a day long of something new. I am a big one for following directions for the most part, but was fine to spend the entire day on my seat for the fourth day. (Don't tell anyone!).
So what happened? It's odd, but the first thing I noticed was that I don't feel like I'm wearing half a jacket all the time with no backrest. I am amazed how much easier it is to stay at a comfortable temperature.
I can get out of my chair easier, sit closer to the desk and haven't had any of those "why does my lower back ache" aches.
Just be ready to tell your curious coworkers which way to get onto it.
If you play guitar or bass, you should try one of the Salli Chairs out. You may reconsider your practice stool.