I use one now but I would recommend it though Mackie replaced my failing one.
The buttons were going out. Now, a year later, these buttons are going out. I think they are getting these made cheaply to be honest.
It has a perfect feature set for my studio and doesn't seem to color the sound for me that much.
I have the Studio + version.
I have the Antelope Zen Go for recording though the mic pre's aren't that bad to be honest on the Mackie. The Antelope is a little cleaner. Though I wouldn't recommend the Antelope at all either. I'm thinking of going with UA for my next purchase.

Hope this helps, Marc