The front of the Spec-01 is actually plastic, but it's high-quality. You can easily mistake the front for being a different material, it does not feel like plastic at all, it actually has a good touch to it.
The sides, top, back and internals are all metal. It's not absolutely a thick layer of metal, but a decent amount. I wouldn't say it's poor quality, it actually feels somewhat premium. The metals used have a decent solid feel, without being too thin.
The cut-out panel actually is tinted a little, it's tinted black; so it's harder to see your components, which I wasn't expecting. I have 3 red LED fans in my case, which makes it easier to view the internals, but the tint is pretty strong. It's not an issue however, since I can still get a glance at my internals. I can usually see everything above my GPU, anything below my GPU is not getting any light from my LED fans; due to my lengthy GPU. The tint may actually not be that strong, it may just be the lightning in my room perhaps, especially as I keep it below my desk. Generally the tint is a good feature, it adds to the quality in my opinion.
If you're going to be mounting a microATX board, you should have plenty of space in the case.
I'm not too sure what CPU cooler you have at the moment, if it's the Hyper 212 Evo it may not fit in the case. I read that the maximum height of the CPU cooler which the case supports is 150mm or less; the CM Hyper 212 Evo is at 158.xx mm if memory serves me correct.
All the best.