Here's what Bicycling Mag had to say about the Addict a couple of years ago. Completely contradicts that UK review slothy posted:

It's tempting to get so caught up in the siren call of ever-lighter bikes that we forget everything else. Sub-1,000-gram frames! 900 grams! 850!?!! But how a bike rides is a different issue from how little it moves the needle on a scale--and a more important one. With its new Addict line of bikes, Scott has the right priorities. The Addict replaces the CR1 line as Scott's top offering, and though there are cosmetic similarities, the Addict is really a new bike. The about-900-gram CR1 is constructed of butted carbon tubes joined with what Scott calls "carbon welding." But with the new Addict, although the stays are made with CR1, the main triangle is formed in what Scott calls its Integrated Molding Process, which lets designers shave material--about 11 percent less at the junction of the top, head and down tubes, for instance. IMP also lets Scott shave material from the bottom bracket, and get supertrick by building the dropouts, cable stops and even the front derailleur hanger (!) from carbon. The result is a claimed 790g frame (54cm). But the real wonder is how the bike rides. Most of our testers thought the CR1 felt as if it squared off even tiny bumps, a ride quality only the most rabid racers tolerated. The Addict is stiffer and lighter, yet rides better. It absorbs or disperses ongoing road chatter handily enough to legitimately be used as an all-day or century bike in addition to its natural spot as a racer. Compared with a CR1, the head tube is slightly shorter and the top tube slightly longer, and the fork has been lightened and reshaped; yet the ride quality of the Addict is so fundamentally smooth that the carbon construction itself must be the key. All testers called the Addict "snappy." Punch the pedals and the bike leaps; press down on the inside drop and it lasers through a corner; jut your hip sideways and it scampers to a new line. Or, as one tester did, mash the front brake to show off by doing a nose wheelie and the snappy bike throws you over the bar. The rest of us--we were thrown by just how light, fast, stiff yet smooth the Addict is.

BUY IT IF: You're a weight freak and a ride-quality connoisseur