Love or hate the looks, the overall well thought out design is a big win for mid-tower cases. Elements like easily removable fans and the addition of the dual intakes through the door for both CPU and graphics cooling improvements are good in themselves. IN WIN took it even further, adding dust filters on all the intakes, making the already easily removed fans needing to be maintained less often. Installing all my hardware was a cinch, as the only screws needed go in the motherboard and the PSU, that's all you need them for.
There are a couple of downsides to the X-Fighter. The fit of the doors needs addressing. I found it difficult to get them to function properly. It could have been user error, but I sat and thought out all the angles and attempted to re-fit the panel many times, but I always ended up with a gap at the front. I know this is a mid-tower, but I feel most system builders use larger graphics cards in their machines. This chassis won't allow some of the larger cards to be installed, like my GTX 280 for instance.
Those two complaints aside, the X-Fighter from IN WIN to me offers quite a bit of bang for the buck. The limited testing I did showed a few degrees difference in temperatures on both the GPU and CPU from what I normally get. Testing, however, is done in my basement with no control of ambient temperatures. I still credit the X-Fighter for that. An asking price of 85.99 U.S. Dollars after M.I.R. at Newegg puts IN WIN at an attractive segment of the mid-tower market. The X-Fighter isn't my personal choice; the design is a bit more flash than I usually look for, but the features built into it overpower it for me. Overall, I like it!