I installed a Turbo/Maxx in the bathroom vent (in the hallway) of my 1998 a few months ago and we really like it. It seems to have a little more noise than the Fantastic Fan, but I'm assuming that is partially related to the large plastic cowling. We like the ability to reverse the direction of the fan, but we haven't actually used/set the thermostat yet. We also installed an RV 360 on the gray tank, but haven't noticed any differences associated with this change.
Jeff & Julann
1998 36' FDS