I'm very impressed with Laurent's work (and his quick willingness to assist new users). I'm planning construction of a new home in another state. This tool allows me to show prospective building contractors my thoughts on the plan. I can also easily keep the family, located in other parts of the country, up to date on how the plan is shaping up.
Many of these folks don't have sketchup or viewer and aren't necessarily willing to install it just to view my drawing. And I don't have to email changes to everyone. I just upload latest plan and everyone with the link can stay up to date. (Kind of wish it would work on my android tablet, but guess it doesn't have the right version of flash)
I haven't figured out how to use the walk/look around tool in sketchup (maybe I need a joystick or something), so don't even try in Spread3D. The results are plenty detailed enough to display my plans.
Thanks Laurent!