I have a GeekDesk Pro and I would highly recommend it. GeekDesk's customer service is fantastic. Incidentally, I customized mine with a custom alder wood desk

I have a GeekDesk Pro and I would highly recommend it. GeekDesk's customer service is fantastic. Incidentally, I customized mine with a custom alder wood desktop, stained a kind of cedar color. I change up standing and sitting a few times a day. You burn about 100 calories an hour just from standing, so standing for about 6 hours a day you burn an extra 600 calories. Makes a difference. Plus, much better for your posture and lower back. However, you shouldn't be looking down at your monitor. It should be at eye level. A monitor arm can help with that.