I just ordered a sm560. Hopefully it actually ships on the advertised date. Given up on waiting for the Ghost S1. This also is the case I've been waiting for. 3 slot design for big cards, the sandwich or whatever it's called layout, two intake fans at the bottom.
The only thing I would like is if the power button was positioned with the IO on the side or on the front bottom. I like the look of it better than on the top. Additionally, for those of us making a gaming PC for the living room, the top placement is not very convenient for a lot of TV stands and such, which are built around horizontally oriented revives. Like that other guy said though, 99% is pretty good. I like the aesthetic of the Ghost S1 a bit better I think askin with the power button placement, but it's lack of 3 slot support is not ideal as is the lack of front IO.
Will there be a filter kit for all models? Right now the one linked for the sm560 is the one for the sm550.