This is a serious piece of equipment and is what every pro needs. You will look legitimate with your clients!The wheels work! This glides back and forth with little to no effort and has that 360 spin that upright suitcases have. And a really great plus is that two of the wheels have brakes! So you can park the largest case alongside you as you work from it.The fabric on the cases is very thick and appears to be water resistant. On each side of the case, there are thick plastic clips that secure the lid, as well as secure the top case to the bottom. The unit as a whole, with both cases attached is very lightweight! I'm surprised by that because this is such a thick set.There are pockets on both sides of the largest case on the bottom. I didn't have any problems with the zippers opening at all!On the inside of the top case, there is a 15 piece brush holder, which is detachable. The Velcro keeping it in place is very strong. My FAVORITE thing about this case is that there is a plastic lining on the bottom of each case, as well as covering the brush holder. Makeup can be messy and over time turn everything brown. I feel like the plastic was a great touch in being able to keep this clean.The second case is where you get into the real storage capabilities. THERE ARE DRAWERS!!!! Love that. They're plastic drawers much like the ones you will find for desktop and clothing storage. But what sets these aside from regular desktop plastic storage containers is that they're thicker! And they lock in place! There is a gripper lock at the handle of each drawer that you must apply pressure to before opening. The drawer compartment is protected by a flap that you have to unzip to get open. There's a pocket on the inside of that flap, it covers the drawers when zipped closed, so I don't know how effective that pocket would be unless you're storing paper thin items.There are 3 detachable plastic pouches under the lid of the top case. I'm assuming they're interchangable with the brush holders since they're Velcro as well.It's hard to be negative because this is such a great set! But one thing I noticed is that the top case doesn't stay open when the telescope handle is all the way up, but once it's down it keeps itself up. However, one accidental tap and the top comes down! This would be a hassle if you're working from the pouches, they're unzipped, and your supplies fall out of their holder.Oh, I'm 5'3 and this case comes mid-thigh on me!This is a pricey piece but it's worth every penny as an investment for true makeup artists.