Had the antec 900, was a awesum case just load and crappy cable management, I now have the Scout, Cooling is good, cable management is good, like the handle, i have to take it to work every wednesday...
Its a very solid case. The only issue i have with it is the 3.5" drivebays, i dont like the side mounting idea, but more the fact that if you have more than 3 drives(i have 4) some will be ontop of each other, i like leaving a gap between drives for cooling puposes.
At this point not realy an issue, drives are @27C at most.
The HAF is a nice case, just wasn't as practical for me, if my pc stayed at home i probably would have taken the Antec P182...
If i need to pick between the HAF an Scout again... Id pick the Scout again.