Last Celebrate The Bean in Melb, I purchased a La Marzocco double (with ridge). Ive had great success using this basket and have been using it ever since. The best thing about the Marzocco basket is that you can fit more coffee therefore producing a richer tasting espresso. The only problem is that a 58mm tamper fits very tightly, and its a fine line between not having enough coffee in the basket and having too much. Not enough and the tamper doesnt go down far enough, too much and you cant lock the portafilter in place. But, with a little perseverance, youll get great results.