The grinder is excellent and has made some good espresso. Pros - well engineered with things like magnets to keep the catch cup in place, hopper lid has grind setting details, nice design, grinding mechanism is better than my previous Baratza Virtuoso for espresso. Cons - the build quality of the plastic isn't great, some parts feel cheap. It can be messy before you get used to it as some residual grinds fall out after you take out the catch cup. You can fix most of this by giving the machine a bit of a shake or knock when you've finished. It's more of a 4.5 out of 5 for me but incredible value and the great engineering means I'm very happy with it