I like the item and think the concept, but the price is steep, and the zipper can be annoying.

I enjoy the tool-box, it is fit for the purpose and the storage compartments keep things from rattling around, but from a cost perspective you can accomplish the same thing for a lot less by just using the 600ML waterbottle and stuffing in an extra rag to keep things from rattling. I can't help but feel that a more cylinder concept would likely be cheaper and accomplish everything the same and it would avoid:

The zipper - depending on how it happens to fall and bumps etc as well as the width of your pedal cranks it is possible for the zipper to get your leg - annoying.

While I thought initially that the price was a bit much, after receiving I found that it is a better bag/pouch than any others I have got and had to cram into a water bottle cage. I really like the fact that I can just pull the whole bag off and take it to my shop to fill it. It has never released when I did not want it to and I jump my bike a lot. The magnetic connection is genius. Once I saw how nice this was, I bought two bottles and the string wrap holder as well.

The mount is great and requires the firm rotation to release the toolbox from the mount. The toolbox is just enough to fit a spare tube, tire levers, and a multitool, but the back half of the case is mostly used up by the mounting base. This can fit an iPhone XR if there's nothing else inside by wedging it in the center along the zipper. The zipper has high resistance but is not waterproof.

Great idea but it’s small . The bottles are perfect! But the case can’t fit a full size mtb bike tube. You can fit some tools . Idk it could be better?

I love the fidlock system, it's such a great design for holding things secure on my bike.
What I don't like is the layout of the toolbox, one side has a half mesh, but the other has a big blocker plate that wastes a huge amount of volume. I much prefer the design of the bottle pod, where one side is half mesh and the other is full mesh with a zipper, this allows me to use every bit of volume, where as with the plate with straps wastes a large amount of space.