I love my rolling 4-wheel Tutto bag. I like the smooth casters and the ability to load and unload it from the car just by grabbing it by the bottom frame. It is sturdy. It does not strain my arms like carrying the machine by itself. I hated my 2 wheel rolling case. Too cumbersome. I travel with my Janome 3050. My big machine stays home. Yes, they are pricey but the investment is worth it.
Sandy