The TS was asking about the brand of guitars called Protege that are carried by Maestro, not Maestro guitars themselves. However, I have to agree with EugeneSmasher on the "build problem". there is a metal plate under the bridge that is there to improve sustain but because of the lack of contact between the bridge and the body, the bridge has a tendency to come off. I owned a Maestro guitar with that problem.
To remedy that problem, the metal plate had to be removed and the bridge had to be leveled and reglued back. Maestro guitars don't sound bad but it's more of the build quality that I'm concerned about.