I've ridden my muni to work twice, and I'd do it again, but not often. It's a short ride for a two-wheeler, but very long for a unicycle...6.5 km's. That means when i get home I've ridden 13 km's on a uni. I don't have the skills to coast, so downhills are a *****.

For the record, I ride on a 20" wheel, 3" (yes 3 inch) tire, and it's as knobby as you can get them. It takes MASSIVE quad strength to push that thing around and balance.