we have a scooba. we bought it from woot black friday '07. it is a refurbed model, but we haven't had any problems with it at all.
i'm not sure what type of laminate you have, but i have heard that it can damage the pergo brand laminate flooring. we had laminate in our old house, not pergo, & i felt that it worked great on it. we now have a lot of tile flooring in our new house and it works really well on it. we also have the model where you can use a white vinegar/water solution instead of forking up the big bucks on the scooba solution. but be careful as not all will accept this.
some negative aspects i've heard are that people don't like the fact that you have to sweep up a bit before using the scooba, as the dirt & pet hair collector/filter is small. but i think if you keep your house fairly crumb & dirt free then it shouldn't have a problem.