Every time a new case shows up and I find myself thinking, "Ooh, that looks nice," it ends up being 200+ mm wide. Also, where's my 5.25" bay (I just need one)? Also also, get off my lawn!
It's 200+ wide because it has a rear 140mm fan, plus motherboard IO, plus some space for cable management. I've just transplanted a machine into one of these and at the back, the clearances are so tight that I actually had to remove the rear fan to be able to put in the IO shield for my motherboard. There's literally no wasted space on the rear panel. Even the cable management space, while usably deep, isn't incredibly deep.
The plus side of this is that there are no "dead" areas where airflow is stagnant in the case - if you fill this thing with 140s, it's a proper wind-tunnel, and cooling is only restricted by the amount of intake air, not case design.
As for a 5.25 - Sorry dude, but people just don't want them, and the things people DO want are made much easier by removing the 5.25. CPU cooling in particular is improved by having a fan in that location rather than relying solely on exhaust fans/convection. I'd not be totally against being able to install a blu-ray drive myself, but really the only viable place for one in modern builds is a vertically mounted slim optical in the space where the 2.5" drive sleds are on this case. Even then, it would make it wider than it already is. Given that tradeoff, I'd rather just buy an external enclosure, since I use a physical drive once every few months at most these days.
Casecutter - I have no problem with top mount IO. For those of us with cases on the floor it's far more useful. There IS one flaw in this case's implementation of it however, and it's that the Audio headers on most motherboards are at the bottom left - the frontpanel cables on this case aren't long enough to reach that location - you'd need about an extra 5cm. Doesn't affect me personally, since I use an external USB DAC, but that's a potential concern for people who use FPAudio constantly.
Bogami - As far as I can tell, you could easily fit a 420mm Radiator in the front, but you'd need to dremel out some clearance to the sides - there's less than a couple mm either side of the 140mm fan frame if you remove the plate and install one in that position. Any radiator that isn't exactly the same width as the fans attached to it (Read: All of them) would need you to manually relieve some clearance at the sides. Pretty sure you wouldn't need to touch top or bottom clearances though, it seems there's just about enough space there.
Also, the HDD cage is quite flexy if you remove that plate - you can move it back towards the PSU if you have a VERY short PSU, and that will allow you to mount both sides to the shroud again, which will stop it flexing, but if you have a longer PSU that prevents that, you'd probably want to fabricate something that secures that side of the HDD cage to the case - Or just install the drives anyway, flex be damned, but be aware that moving the system around regularly isn't a good idea as you could knock the drives out of the mounts in the cage. For a system that never moves and isn't in danger of being kicked, you'd be fine.
Like all cases, it's not perfect, but for my purposes it's as perfect a case as exists on the market right now - If I'd used an R5 I would have had to give up a front radiator mount entirely, since I need 3.5" bays. If I'd used a 600Q I'd have had to replace one of my 3.5" drives with a 2.5, and my GPU fans would be working against the PSU fan, so that'd be a no-go either.
I'm very happy with my KL07 and would gladly build a new system in one for family or friends.
