I used this case twice a week while using a bike & once or twice a week while using a car. In both situations the case is very realiable and does as it is advertised. It keeps itself steady on your back. Height can be easily adjusted by using the straps on the sides.
Storage space inside is sufficient for reeds, cleaning tools, 2 straps (1 normal/neck & 1x harnass).
The area to store your sheet music/books is very large as well. It can easily hold over 100 pages and then there is still room to add a stand in there. If you aren't carrying that much sheet music or books with you, then you could easily place away a light sweater in there as well.
The wheels at the bottom are great. With my previous case, i often had the struggle of carrying my saxophone on one shoulder and a backpack on my other shoulder. Problems of the past! Now i can easily carry a backpack comfortably, while rolling my case behind me (requires no effort). It evens leaves room to carry something else in another hand. Wheels = awesome. I didn't know what i was missing untill i had them.
I doubted buying this case, as i thought it couldn't be this good at such a price. I'm glad i took the gamble.