I've got the Bosch Colt and like it, though there are probably better options out there.
Spindle lock does help. But they've been known to shear on the Colt, and probably on others as well. It is important to be sure it is FULLY depressed before using the wrench. If it's only partway in, you'll easily break it and be forced back to two wrenches.
Variable speed is a MUST. The cheaper model Colt (without the rubber grip) is missing this.
If I were buying today, I'd see if something has a light. I've got one router with that, and find it quite nice to have. The DeWalt has this, the Bosch does not.
First thing I did to my Bosch Colt was remove that stupid square base and put on a proper round base that accepts standard metal collars.