Some people recently have complained about it not working. I've got it, and it was working fine when I last used it. As for how good it is.. Depends on the settings you run, and the lists you have. Also, if you run ad-block with it or not, otherwise it could run slower than a normal ABer. Yes it will run 3 shops at once, as well as checking the igloo. You should know that if you read information on it when you downloaded it. It's on the program download information page.