Hey guys: Little history first. I posted yesterday about deciding between a harman p68 and quadrafire mt vernon ae. Anyway, I went to both places and the service between the two stores was night and day. The Harman dealer was very knowledgable and helpful but the quad gentlemen, while being friendly, was clueless when it came to the mt vernon ae. I must admit I much prefer the look of the mt vernon to the p68 though. BUT, while the dealer was showing me the mt. vernon, I started hearing these loud vibration noises coming from the stove. They told me they are still trying to work out the kinks. So, I'm at a loss. I am seeing quite a few negative reports on the mt vernon, but is this only a few or do we have a big issue here? The dealer told me if I bought the mt. vernon that quadrifire told him that the boards (?) would have to be replaced with the newer versions before he sold it to me. Anyway, I loved the Harman dealer but just do not like the looks of the stove. Personal preference I guess. I tend to enjoy the cast iron look so I'm wondering if there are other companies you guys would recommend that have big powerful units that can heat 3000 sq ft comfortably. And you guys were right, dealers really make a big difference. Thanks!