It was missing parts (hanging hardware and dampener), which we had to contact the manufacturer directly to obtain.  And even though they sent us additional hanging hardware it wasn't the correct type, so we had to purchase our own.  And when we finally managed to hang the range hood and turned it on it made a loud banging, screeching noise after running longer than 3 seconds.  We noticed that the left fan was wobbling.  So we disassembled the unit and found that one of the weld's holding the fan in place was broken.  The item gets 2 stars (instead of just 1) because Proline's customer service is otherwise friendly and helpful and the actual design of the range hood is nice.  But aside from that I can't recommend this hood range.  We're trying to see if we can get a replacement unit sent out to us- we might reconsider changing this review if we get a good, working unit that holds up.