In the past month I've gone through three XL2410t's and currently two Alienware AW2310's. I'm extremely picky/ocd and have high expectations.
The only reason I kept returning the Benq was because each monitor had varying panel uniformity. You could notice slight shifts in solid'ish colors when looking around in a game, for example. Even on still images, say, the background on OCN here, I could notice slight variations of the background color. Now, when I showed the monitor to my not-so-ocd friends and family, they saw absolutely nothing wrong, so keep that in mind if you're not overly picky like me.
Besides that, everything else was great. Reviewers that tested the input lag determined it was 0-5ms while instant mode was turned on (that's its no-lag mode thing). The all-matte bezel and stand design was well done. Colors were fine once I calibrated it with the settings found in this review: http://www.tftcentral.co.uk/reviews/benq_xl2410t.htm
. As you can see in that review, there's an issue with it the AMA response time acceleration thing in that it produces some slight dark trailing, but in all honesty, I didn't notice it at all. If anything, it gave faster games a "sharper" look while in motion. I actually prefer the way it looks compared to the slower response time of the AW2310. A lot of reviews complain about backlight bleeding, but the three that I had were very good. There was very minimal bleeding. However, the third monitor I got did differ a little from the other two and had some more, uneven, bleeding on the bottom. My AW2310's definitely have much worse bleeding than the BenQ.
In the end I returned them all and ordered the AW2310, which I'm not exactly 100% happy with. I'm actually going to order another BenQ, but from a different source in hopes of getting one with good panel uniformity this time. That was seriously my only complaint about it, and if I do get a good one, I'll be returning my AW2310.