A:AnswerJust press in on the latch at the bottom right corner of the microwave to open the door. You have to press kinda deeply. I prefer a handle, but it's still a good microwave.
A:AnswerYes. Press 'Time Cook'. Then choose how long you want to cook something. Then press 'Power' tab and choose power lever you prefer. Ex: press the number 5 for 50% cook power. Then press start.
A:AnswerNo. Counter top are stand alone and can be moved on your countertop if you need. Built-ins are, as the name suggests, built into a cabinet and bolts into it.