There are some reviews assembled here: http://www.damiensymonds.net/lab-reviews
Avoid any labs (like Millers) which make a calibration recommendation of 5000K or 5500K. 6500K is the modern standard.
Well, the trouble with calibrating at night is that you have to wait until the next day to see if the calibration was successful - that is, compare your prints to the screen. Then, if it's not successful, you have to wait until the next night to re-calibrate, and so on.
Calibration should take minutes, not days.
Yeah, I reckon with that blind closed, this would be ok.