When I first started reading the posts on this forum there was quite a bit about the Enviro Insert and the M55 FS..things seem to be pretty quite now. Mine is installed and running GREAT..actually I am kinda bored with it...ha ha ha....to sum it up the only complaints I have heard is about the dirty glass, non adjustable convection blower (except with heat range changes) and a little noise with a "stirrer" motor that got replaced. Have I missed anything?..Seems there are a lot of posts here about stove issues so I thought I would come in and say..stove is running GREAT no weird noises and puts out great heat. Will be back to groan later if anything developes.