The ToonSeum is one of Pittsburgh's absolute gems - a unique, welcoming, community-minded organization where they're always trying out new ideas and creating mutually beneficial collaborations.
Having worked down the street from the ToonSeum for a few years now, I can say without hesitation that they are wonderful neighbors, very actively engaged in the success and improvement of our block, and of Pittsburgh as a whole. Joe Wos is a fantastic human being - friendly, knowledgeable, passionate about his work, and very concerned about the good of the community. My organization has partnered with him on a variety of endeavors, and are very lucky to have him on the block!
Neighborliness aside, the museum itself is awesome. I personally have no particular interest in comics, cartoons, animation, or superheroes (I don't *not* like them, I'm just not what you'd call a fan...) but I am nonetheless totally engaged whenever I go in. There's always cool new stuff to look at, books to flip through, and memorabilia to admire - even for the untrained eye like mine.
Moral of the story: check it out. A must-see for visitors to Pittsburgh, and a fun place for kids and grownups to stop by regularly.