I have had my Capresso MT 500 for about five years now, and it takes about 7-8 minutes to brew a 10 cup pot. I don't do smaller pot sizes (I use a french press for that), so I don't know the brew times for 3-5 cups. When I have tested the water out of the brewhead with a Fluke temperature probe, I get readings of 198-200 degrees F.
PS: As everyone here knows, the different manufactures have varying definitions for the volume of a 'cup'. So my 10 cup carafe may not be the same size as your 10 cup carafe from a different model.