Toedtoes -- I see this as alternative living area. It would would be kept as a bed when it is just my wife and me, but I have teens that like to get away to there own space and this would provide the separate area.
Bedlam -- The Host is just as tall as the Eagle Cap but the Host ceiling on the cabover is more tapered so there is not as much headroom. Also the Eagle Cap has more square footage in the cabover.
In my opinion these truck camper spaces are small even in the largest models, so any ability to have any space be multi use is an improvement. Wouldn't it be nice if the created a fourth slide that popped up the top of the cabover?