The Bumbo is a seat for babies made out of polyurethane-coated high-density closed cell foam. It has a wide base, to provide a sturdy and stable platform for placing. The seat and seatback are contoured for a baby's body, so that he/she can sit-up unassisted - the only caveat being that baby needs to be able to hold his/her head up. It is also contoured such that the depth of the seat negates the possibility of them being able to get out of the seat. Optional items like a feeding tray can be purchased. The feeding tray is ideal for TV dinners, when Bad Ass Dad has the world juniors to sit in front of the HDTV for.
It is a good piece of kit to have around the house. It is not compact, and I would think, probably not an ideal piece of kit to take travelling. Not only is it a little bulky, it is also very awkward to hold and pack into the vehicle. If you need a travel system, get a portable travel feeding seat thingy. We have taken it camping once, but our kid preferred to be in the dirt, like a Bad Ass Kid should be.
I can only assume that Bumbo's are comfortable for the kid - mine never complained. That is, until her thighs got too chubby and she had a hard time getting them into (and out of) the leg cutouts. Because of its coating, it can be washed quite easily, in fact just a wipe-down with a Clorox wipe or similar is all you need. It does feature a shallow indention on the side that serve as grab handles. DO NOT, I SAY AGAIN...DO NOT ATTEMPT TO LIFT THE BUMBO WITH YOUR KID IN IT...somebody will get a hurt real bad.
I guess Bumbo beat me to the punch, because I had the idea of reaming out the bottom so that it could be placed on top of the toilet as an ISD (Improvised Shitting Device). Bumbo came out with their own version which is infinitely more refined than my crude idea. Bad Ass Dad's Bad Ass Friend has one, and its pretty Bad Ass. I wish Bumbo made Adult Bumbo Toilet Seats.
*Note that there is an official warning from both the manufacturer and from Health Canada to not place this seat on an elevated surface, lest the kid somehow falls backwards and its brain spills out on the floor. Do not put on a cushioned surface or a chair, as there is no means of securing it to a stable anchor point.