My first impression was that the build quality is excellent but I was quickly disappointed to find out that it can't fit my camera + 2/3 lenses however , I managed to fit everything I need by taking out few dividers and rearranging the setup.

Worth mentioning, one of my lenses (RF 85mm f1.2) is just really thick. Without it, I wouldn't struggle fitting in my kit so you won't necessarily

With a bit of trial & error I did manage to fit everything I need in it but I must say it's obviously still not big enough to fit as much as you'd fit in a full sized backpack.

This is what I managed to fit in, so it gives you an idea of what you might be able to fit in.

Canon R5 (mounted on RF 85 lens)
Canon RF 85mm f1.2
Sigma EF 24-105 f4 OR Canon RF 35 f1.4 VCM
Canon EF 50mm + EF->RF adapter

That leaves no room for anything else in the main compartment but can still squeeze in few card readers / batteries / cards etc.

Needless to say, the zippers are excellent, the padding is great and the stretchy pockets on the side can come in handy for short but girthy objects.

The straps at the bottom are only to hold a tripod underneath, they play no role in securing your bag as it doesn't open from the bottom. This could be an advantage against thieves as they may try to open it the wrong way which should give you suf