The pickup sounds thick and raunchy, somehow like a P90. It has a organic lively raw edge to it and can go very heavy.
The bad news is that the SDS is rather noisy, even more than a normal strat coil. I personally think the results are worth it, but keep in mind if you want a quiet pickup, this isn't it. This pickup surprised me, I like it alot... also, its quite cheap compared to the alternatives.