I own both, the Pico and the Kermit. If your a big guy like me you will find the Kermit somewhat tight. The Pico is larger and very comfortable.
The pico sets up in about 15 seconds were the Kermit takes a lot longer and can be very difficult after a few drinks , alway's fun to watch. For a little extra Kermit also makes leg extensions that gets it up to normal height.
Here are both chairs padked away. The extra bag with the kermit on the right are the leg extensions.
I use the chair kit that you can buy for the superb inflatable down filled mats.
It's light, tales up only slightly more space than the best sleeping mat in the world, and protects the mat as well. You leave the kit as a sleeve on the mat permanently (although I take out the four small aluminium poles to roll it up. The best thing about it is that at night, when everyone else is freezin because the cold air is circulating around their chairs, you will be toasty warm as well