Here are some photos with a Sony M10 recorder as a comparison.
I do not really like the battery door design. The plastic cover pops off, but is held to the recorder body by a rubber/plastic keeper that you have to bend & stretch to then access the battery compartment door. I would guess that this will wear out over time, but who knows. I wish there were a rechargeable li-ion battery solution that could just live in the compartment. That would make opening this door way less frequent. Of course if you use an external battery that would also help.
Here are some photos of it:
As far as sound quality, I think the pres sound very good! S/N ratio seems great, as there is very little hiss or noise even when the preamps are cranked all the way.