Okay gut reaction without having the case in front of me.
The case is designed for a negative air flow system and this is not the best solution, something that has been proven over and over. While the bottom is designed for airflow the long, low PSU takes up most of that space making the opening less likely to really provide much air flow.
The interior of the case, particularly the poor paint job and the tacky method for finishing the interior shows that details where not well covered and at this price point that is just not acceptable. At large side window with no real cable management options makes no sense, the whole idea of a side window is to show off a clean build.
Based on the videos I have seen this case looks like a quick attempt to put something on the market for the direction EVGA thinks computers are heading. As with their motherboards, to me this is over priced and an not well thought out design.
Not going to say this is a bad case but for the money you pay you expect more form a large company. The M1 which is a small company is selling for not that much more with a much nicer case design. A company with the resources of EVGA could mass produce a similar case with a PSU and not change their price much. Instead we send up with an inferior design with poor quality in the final build.