Well, on the down side, the install is expensive and time consuming, and you have to load two stoves, which is also messier. On the up side, your reload cycles should be more than twice as long than they were this year, and your house will be more comfortable. I bet that basement stove will be on 24-36 hour reloads in the dead of winter with the upstairs stove doing most of the work. Also, you get to sniff at all the peasants on the forum who not only have lesser stoves, but who also only have ONE of them. Hail to the Kings, baby!