I think you've gotten some good input from the others, and it doesn't seem like this place has had a lot of experience w/ maple. Maple is harder than oak and it's a closed pore wood making it more challenging to sand & stain. Even though it's less hard than braz cherry, often it's just more challenging to work with.
It looks like the biggest issues are around the edges and the only way to truely fix this is to resand the floors. Or, you can live with it. Regarding bubbles, etc, that can prob. be fixed with a full screen and recoat (and avoid sanding) and most likely it's best to do the whole floor so it's uniform (unless it's only in 1 area).
Regarding your last question, on what do I think of the stain/color, and this is opinion, no I don't think it's good color choice. The stain has actually penetrated well, but I think it's a very poor color selection give the color of your cabinets. You need more of a contrast and your colors just don't go.
So, if you decide to resand the floors, make sure you have more of contrast and work w/ right color tones (I might even do natural...which in turn will fix some of the issues on the edges) or if you love the color of the floors, I would paint (or restain) the cabinets...ideally I would go white. That combo can work very well for you. I would also repaint, because I don't think that combo is a good one either, but I have a hunch you haven't gotten to that point yet.
Debbie Gartner, aka The Flooring Girl
http://TheFlooringGirl.comWestchester County, NY