Other than the indignity of having to buy a $28.00 bulb!! Installation required pulling the entire unit out of the wall and removing the sheet metal cabinet from around the microwave. All the fasteners were Phillips head screws except two, which were pin in Torx security type heads. REALLY? Requiring me to drive to Harbor Freight and spend an additional $6.00 for a 33 piece set to get the ONE size I needed. Buyer Beware!!! When shopping make sure the microwave unit has a bulb you can access easily from inside the unit like every other one I have ever had.