Echoing the above, both are very good regs. I own a Micron and along with a Mares Proton they are my travel regs of choice due to their small size and ease of packing. For its size, I consider the Micron to be a very good breather, and as long as I am not photographing or spearing, I don't find the bubbles a problem.
See if your LDS will allow you to dive both and then get the one you feel most comfortable with.
See if your LDS will allow you to dive both and then get the one you feel most comfortable with.