I will start with the cons:

First of all the logo on the case is a sticker. Yes, that is right, a flippen sticker. When my case arrived the sticker was damaged and I decided to remove it. This irritated me quite a bit that a Company who builds quality cases made THEIR logo on this case a plastic sticker.

Another thing is that the case isn't really RGB. It has about 7 preset colors. I linked my case with ASUS's Aura RGB software and it does work, but it only work with some of the color schemes and the LED's can only display the preset colors. So if you are an RGB enthusiast then this case is not for you.

Now for the pros:
The tempered glass looks fantastic, cable management is a dream, HDD case is removed for amazing air flow, phanteks fans are really silent and provides great airflow and the case has padding that reduces noise. Lastly it comes with magnetic dust filters and covers for the top part of the case. I think this is awesome since you can customize it to your liking.

Overall it's a great case!!!

got the case today and i must say its great i love the look of it , airflow is good with the 2 pre installed phanteks basic fans. the case is about 1 meter away from me on the desk and the only fan speed i hear is the last one or the highest but still good and quite. saw someone say theres no reset button ..THERE IS!

My previous chassis was the very first Cooler Master Scout case and I was against changing brand for various reasons. when my P400S arrived from Wootware, everything was intact with no scratches on the case. I was surprised switching from Cooler Master to Phanteks the materials used on their chassis are very solid even when one removes the sides and front panels, the P400s still maintains its structure integrity.

The Phanteks P400s series is a very good and solid case to build in and would recommend the brand to anyone.

Bought this casing on Friday 17/November/2017

Unpackaging it was when i realised what quality im getting, as its packed inside 2 boxes aswell as with foam

Installation of my parts were easy except for a misunderstanding how my psu gets in the box, you need to press it under the shroud.

Biggest issue i had with the casing is the length of my own psu cables xD , if you arent sure your cpu 4 pin will make it to the top then i would highly recommend buying the extension cables.

Overall cable management was a breeze, airflow is excellent, LED's are very nice, fan controller is a big bonus, stock fans go very quiet or very fast.

10/10 will recommend to anyone that loves having a sexy pc to stare at.

Coming from Cooler Master to Phanteks was a big leap for me, but after building my pc inside the case and seeing how spacious it looks i was absolutely in love with it. Thanx wootware and Phanteks for an awesome product and excellent service. 10/10 rating from me on this product.

I was really surprised with this case, for the price, it comes with great features.

By far the best thing, is the tempered glass, it looks stunning. The case itself comes with a RGB strip which is a nice edition.

The fact that the case has fan speed control, and RGB light settings on the front panel really makes it easier.

Great buy, highly recommended.

Coming from a corsair HAF case the airflow feels more limited, and I do not recommend running a system in the case with the measly two case fans included (I opted to install three additional Corsair AF 140 fans and it's working pretty well).

The inclusion of a RGB strip is not mentioned anywhere, but was a nice surprise and lights up the case great. Paired with the (although somewhat basic) fan- and LED controllers built into the case the whole unit works well.

Oh, and it's beautiful. Tempered glass is the way to go with case windows.