The BCG450 is not as bad as many make it sound. It has at least got real cutting edges unlike the other Breville grinders which have flat burrs but they are not sharp and in effect, they crush beans rather than shear them. Give that a try first but one thing to note, ignore the pre-set settings that you get at the hopper. The "espresso" setting on mine was too coarse on the Gaggia Carezza and to get to a near decent shot, I had to set it on the border of the espresso and turkish setting. I think the settings were designed for pressurised baskets. If youre using unpressurised, you might need to go the finest (turkish) setting even. Judge the grind setting by the shots and not by what the hopper setting says, I suppose.