We recently bought a Gaggia Pro and like a rookie I bought a less than pro grinder from a big online market place. Rookie mistake, could never pull a decent shot and used a lot more espresso than I would have, if I'd bought a decent grinder up front. Anyway, with very little fine tuning, the DF64 is delivering the perfect espresso grind. Negligible retention, totally pleased with it. Kitchen Barista has the right equipment for the right price.