Product review (4 stars): Function good, but won't fit any stud measurement.
Had to redrill mounting holes. Would not in any way match up to the stud wall or the cabinet above it. Runs quietly and light (halogen)
do a good job. The fan was rubbing the mounting hole that it sits in. Bracket holding motor not bent correctly. Had to remove fan and motor to center fan in hole by bending mount bracket. Glad I checked free rotation before mounting hood.