I had the Apexi WS as my first exhaust, it's pretty quiet because it has a chambered muffler design. Chambered mufflers aern't good for speedy exhaust flow, but they keep the noise down. The WS has a really nice low, deep tone. It sounds awesome, I loved it. It only get's loud at all when your at WOT, and even then it's still not too loud. I only got rid of it because I needed a larger diameter exhaust for my desired powerband location in my engine package, and because of the chambered muffler.
I've heard of some people having issues with it hanging too low, and it does has a pretty big canister, but I was lowered on the Eibach Pro Kit and I never scraped.
I bought mine at aieonline.com for around $350ish, but they're not around anymore. If you look hard enough you should be able to find it for around $375 shipped.