Had a Tutto for my Bernina 850-BIG machine. It got loaded so heavy took 2 people to lift it into car.
As to padding; the quilting project was the padding. It could use more padding in bottom-more fabric; I always need another spot to store stash.
Narrow profile when pulling is nice.
Rolls on 4 wheels, not tilted on 2. Less likely to tip on unlevel terrain. And less likely to break wheel.