Initially, I didn't think the attachment was needed or necessary. Boy was I wrong!!! The design complements my kitchenaid espresso machine nicely. It's slim and doesn't take up much space on the counter. Micro-foam adjuster? Yes, it's a thing and it's an amazing function to adjust milk amount and texture to your personal liking! It even managed to produce a nice foam using almond milk. It's definitely fun to experiment with it. Downside: as with all detached frothers it needs to be thoroughly cleaned on a regular basis and that's never fun. But: the frother is great and so worth it!