The most beautiful case I've ever had (I got it in white, personally) - gorgeous and everything inside is visible, if you desire that of course. Everything is super organized inside and there is truly endless space for everything (cable management, hardware, GPU up to 330mm, etc). Ultimately, as it turned out, because it's also the first time I buy a tower-type case, the "chimney effect" they call it (like the Xbox Series style) works very well - very low temperatures (also in combination with changing the fans with some other Thermaltake ones, which I did - I'm generally a fan of this company)!
1. It's not very important I suppose, but if you have a GPU with a dual vent, you should know that for some reason in the construction, which I can't imagine now, one of them gets blocked at the top by a layer of the case - either you have to "shave" it a bit with an electric disc or any other way you prefer, or you simply leave it like that and reduce the "breathing" of the card a bit, at least I don't know.
2. Fan Configuration! (obviously, it's always preferences and different personal experiences):
Based on the research I did and the tests all this time, I ended up here (I have three 140mm ones - some other Thermaltake ones again):
a) One on top as you know, exhaust (it can also be considered as the CPU cooler if it's a tower, as exhaust or at least another way to "move" the air internally).
b) I also put one on the PSU shroud, but as an intake, upside down (the fan pulls air from below and pushes it upwards) - basically, the case design is strange because this can also be considered as a direct exhaust they say (however, I have a fanless PSU - if you have an SFX PSU, you can do another trick they say on the Internet: you can put a 120mm fan with a little inspiration, because unfortunately, a 140mm one doesn't fit, right under the PSU shroud, just above the power supply).
c) The most different of all though is that I placed the rear fan as an intake and not as an exhaust. It cools the motherboard and also because when you put everything inside the case, it will be very closed and everything will be very close to each other, you take advantage of any fresh airflow you can have, to better assist in airflow. Also, this way you somewhat follow the pattern they say that for every two intakes, there is one exhaust.
All of these are open to debate for everyone and depend on personal tests, experience, hardware you use, and many other factors, but personally, I ended up here based on tests during all this time that has passed, internet research, and posts from other users who also have it.