The Icecap says it can be mounted vertically, which would give me more options. A couple quick searched reveal plenty of people mounting maxspects vertically as well. I guess I may reconsider after all.
Does the ICV6 replace the advanced controller, or is it in addition to? I was going to buy the bundle, but if the ICV6 controler replaces the standard controller it is more cost effective to forgo the advanced controller bundle and buy the pumps and ICV6 separately.
Both brands can be mounted vertically or horizontally. For the Maxspect, you're still going to need the regular controller to power the pump(s). The IVC6 is an add-on but it doesn't need to be be placed next to the tank. You could put it in another room if you wanted less clutter around the tank.

