Those LianLi Snail series aren't the coolest PC. By terms of cool from air and cool looking, it's not. The way it's being made, it will lack of fans.
This is the one you want to get:
It's watercooled motherboard tray and side fans. You might need to be careful as it is really looking like a radiator, but it's going to be good to work with. The door opening is well thought though. Hydraulic opening will get the fuss with some poor door designs.
The big thing though, is that the watercooling blocks will help cool the thing preety well and the 120mm fans will help the rest to settle quite well.