A while ago I got a sit-stand desk: http://jakeseliger.com/2015/01/24/geekdesk-max-sit-stand-des... and it's been great. I'd never willingly go back to full-time sitting. Even apart from whatever health benefits accrue, switching between sitting and standing to work feels much better than sitting alone.
Only problem was that it took about 2-3 months to get here. But they were always responsive when I asked about the delivery schedule. All-in-all, it was absolutely worth the wait.
https://www.autonomous.ai/smartdesk-sit-to-stand-height-adju...
- I have nothing to do with this company except as a fan of my desk.