Even though the Monster Mansion isn't the best marketing attraction, its a great new "addition" for the park. Most, if not all, other Six Flags parks don't have something like Monster Plantation/Mansion. I think it's great. Every time I visit SFoG, I go on this ride. No its not the best ride, but its a great way to break up your day. I'm looking forward to riding this dark ride next year.
On the other hand, I miss Deja Vu and wish it came back or gets sold to Carowinds.