Having wheels is a must have, but the problem is that the wheels are mounted on a wooden plate that's probably too big causing one of the corners of this plate to harm the bag making a small hole on it.
It does not represent any threat to the bass though.
Apart from that it great, again the wheels are a must, regarding the price it feels well built, resistant, well padded it can sustain it self standing against a wall like if it was a case, plenty of handles to handle the bass easily on doors or in and out of the car.
My last bag cost me 3 times more, lasted 10 years but started to give me problems right on the first month...
I believe this one worth much more than it costs but only time and abuse will tell. Let me say that for the price paid, if it lasts in a good working condition for 5 or 6 years, than it has already worth it.