There's a good post/review of an older marin hamilton here.
That year was quite different from the 2013 that I have, but some points still pertain. It's an excellent commuter/all around bike. His model was single speed, I think, while mine was a 7 speed. (Mine is currently a 21 speed since I swapped in a triple ring crank and front derailleur).
He wishes there was disk brakes on his hamilton. The answer to that is to get a marin muirwoods 29er, which has disk brakes and 24 speed drivetrain.
The 2014 muirwoods has hydraulic brakes, while the 2013 had mechanical disk brakes. Personally, I prefer mechanical.