I have the 400 and love it. I commute daily to and from work and it handles easily in traffic. I am 5' 5", so the height and weight are easily handled. It has plenty of UMPH to pass slower traffic. Also, in my area there are a lot of "canopy roads" with twists and turns and speed limits between 35-45 miles per hour. The 400 has no problems. So far it is just one up, but after I take the Safty Course later this month it will be two. I will give some feedback then. I use grade 87 gas and average around 64-65 miles per gallon. I only have 510 miles racked up on the 400 and this may improve a couple of miles after the first tuneup.