I have two and commute 99% of the time on the Big Dummy with an electric assist from BionX. Was using the Xtracycle before my kids borrowed it too many times. I love it because it is comfortable and I can stop at the grocery store, or home improvement, etc. and I'm always ready to haul. I even take my 15 yo to the dentist every 6 months on the back, and then drop her at school. Point is that they are very versatile.

The Big Dummy will not fit in my elevator at work, but the Xtracycle will (barely). Neither will fit on the bus rack (or the one for my vehicle) so you may need to take that into consideration.