If you want one bag that you can use to store everything for the hobby in, this it a pretty good option. It can hold a decent amount and has a very good adjustment range for the strap. But overall it's uncomfortable to wear for long periods of time and some of the materials and construction feel kinda cheap.
Build: 3.5/5
The nylon body and the zippers feel pretty nice (though not YKK branded), even though there's some pretty cheap and basic stitching holding it all together. The straps, netting, and welding on the other hand, all feel super cheap and plastic like. I'm not sure how long some parts of the bag, namely the stitching and compression straps, are going to last.
Storage: 5/5
The bag can hold a decent amount. I'm able to fit 3 yoyo's in the padded pockets, a 3 yoyo hard case, a large off string yoyo, a 60mm yoyo, and a 58mm yoyo (all in their respective bags) in the main compartment. The 3 padded compartments in the main pouch are quite large and can easily accommodate larger yoyo's (wider than 60mm) with a diameter limit of around 55mm (if stored vertically, 90 degrees from how the product pictures have them). The netting in the back is perfect for storing different strings, and the two little front compartments are great for mini yoyo's, 66% yoyo's, and responsive/looping yoyo's. I'm able to fit a Minitee and an Outlier Mini in one pocket, but without a cloth to separate them they'll clink together and could ding one another. They're also a good size to keep some bearings, lube and bearing tool in, as well as string if you don't wanna use the mesh pouches.
Comfort: 2/5
This might be one of the most uncomfortable bags I've tried to carry. The shape of the bag lends to the back bulging out, as the back of the back is smaller than the front of the bag, giving it an almost triangle shape when viewed from the side. This also makes the bag flop weirdly on the body, almost twisting away from you when you wear it. It's defiantly too big to be a fanny pack, and the padding doesn't really do anything if you wear it as a crossbody bag. It doesn't hurt to wear like a drawstring bag, but it's definitely uncomfortable. It's fine if you need to take your stuff on a trip, but if you plan on walking with it all day at a comp or a convention or something, maybe pick something else.
Overall: 10.5/15
Great bag to store a lot of yoyo's, accessories, maintenance stuff and tools in one conveniant place. Perfect for traveling to a competition, maybe not the best thing to wear while walking around the competition.