This is a nice small to medium sized messenger style bag. It's very well made, and looks and feels high quality. It's great for light carry such as city or cultural visits.

It doesn't try and cram in too many compartments you'll never be able to fill at the same time. It has 2 adjustable removable dividers for the decent sized main compartment, a pocket in the lid and a front outer compartment with 2 elasticated pockets. The front outer is a hard shell which helps keep that space usable. The base is not reinforced with a stiffener.

Note : the description shows 1 divider, I got 2 though I'm not sure there's a configuration that would actually be practical with both dividers installed - unless you used them to stiffen both ends of the bag.

It's deep enough to take a Canon 70D + EFS18-135USM lens down, but not deep enough to take the Canon R7 with that as the eyepiece sticks up too much. You can just about fit a 70D/18-135USM and a 100D/10-18STM lens down side-by-side, but it is a tight fit. 2x 100D is quite do-able, or a 70D+lens with a spare lens. The main problem for me is my R7 configurations don't work but if you have RF lenses it should as they'll be a bit shorter (I don't yet). I was surprised to see it would even fit my 70D+70-300L.

The strap is held onto the bag by sturdy metal spring clasps and is fully detachable. The slider allows a large adjustment range, from a sling to almost a belt. Surpisingly it has no cushion pad, but still manages to be fairly comfortable. I've got similar sling messenger bags with cushioned strap pads and while they can be nice when placed properly they invariably need frequent fiddling to keep them on the shoulder, especially when wearing a coat. I don't think it's a major omission, especially if used as a sling round bag when a slider pad would just get caught up on your clothes anyway.

The back has a horizontal velcro strap. I'd prefer this to be vertical so it could be used on e.g. a Think Tank belt. The tripod straps underneath are a bit redundant for me, and are unfortunately not removable. Then again they could be useful for securing a thin waterproof jacket.

I think this is a very high quality bag that's well designed and made. It functions well as a messenger and a sling style bag. It doesn't try to do too much or have too many compartments, giving you what you actually need instead. The hard shell front compartment is a great idea that I've not seen elsewhere, and makes that compartment genuinely useful.