Thanks. I strongly dislike websites that are clearly designed for mobile phones. This appears, as you say, to simply link to other auctions with CAC coins.... I guess if you are exclusively looking for CAC, this might be useful... but I feel that anyone who does that probably also raises their pinky while sipping their seltzer water.
Yes, it was interesting to check it out briefly but I doubt I'd go there again. I look for specific coins and certainly wouldn't limit my search to just stickers. I go to those sites independently anyway, so the "CAC Marketplace" is useless for me.