I really like this grinder. I am in a fortunate situation to have a bit of skill in repairing commercial espresso and coffee equipment and finding used commercial equipment that I can repair and justify keeping (some of). I say that because I have used and repaired and own fairly high-end (if not the latest models) grinders and espresso machines, mostly from Italy, Germany and S. Korea. The GU63 isn’t marketed as a commercial grinder and I wouldn’t suggest using it for that use case unless you only sell 5-6 espressos/drinks a day. From the build quality and tolerances, it is built as well as or better than any grinder I own (in some cases). I own and repaired many commercial grinders and the GU63 goes toe-to-toe with every one of them in performance and ease of use. More than that? It is consistent, repeatable, quiet, fast and simple to use. It looks the part, feels very premium and the tolerances this is machined are bananas high. I may be an outlier but I prefer a conical burr grinder 8 out of 10-times even with light roasts, save for very light roast coffees so the GU63 is square in my wheelhouse. I have a Fuji-clone/rebrand with espresso burrs that I use for very light roasted coffees and pour overs but most of the time I have been using the GU63. I use it several times a day and have about 2lbs. through the grinder in a couple of weeks with no issues. I have seen and tested burr ‘seasoning’ and it’s mostly false aside from the coffee oils slowly working their way into the burrs (to a degree) but I am not someone that buys into the seasoning period. Most of the changes in the grinder after seasoning occur from the normal wear-in of parts and construction, not burr seasoning. So, support? Outstanding. I had a question and potential concern and Geimori was prompt, professional and informative in their response. The ownership experience has been fantastic and my emails to Geimori were quickly addressed and they even sent me a video to better answer my question. I cannot recommend their grinder any higher. Their support is legit, fast and it addresses my question. Shipping? Not as prompt and I did have to reach out after the 3rd week from my order and no grinder or update. They responded promptly, explained the delay and my grinder arrived a few days later. The packaging and shipping materials were top-notch. If you are in the market for a reliable (so-far), high-quality, well-made, quiet, accurate and consistent grinder, this is a legitimate option even at 2X the price.

nice fluffy grounds. uniform and minimal retention. I hope the motor lasts, I'm not familiar with this brand, so I am nervous, but it sure blows the top off my old Breville Smart Pro grinder!

I recently received my GU63. I am so impressed with it. I was able to dial in my grind size very quicky and it is very consistent. It was almost zero retention from the first grind. It also makes very little mess and is quite quiet. Overall I would recommend this grinder and it is a bargain at the current price.

Unbeatable value for the price.

This grinder outperforms others that cost 5 to 10 times as much and are marketed as “endgame” grinders.
I'm in a good position to judge this, since I've owned quite a few of these “endgame” grinders, such as the Weber Key and EG1, the Kafatek MC6, and many more.

I am very happy that i decided to purchase the GU63 and just can highly recommend it.

Best regards,
Andreas

I’m a coffee enthusiast and I’ve been looking for a grinder that can give me more control, better consistency, and less mess in my daily routine. The Geimori GU63 has honestly exceeded my expectations.

The grind quality is very consistent, especially for espresso. It is easy to dial in, and the adjustment range gives me enough flexibility to fine-tune the grind depending on the beans I’m using. I also really appreciate the single-dose workflow. There is very little retention, so I feel like I’m actually getting the dose I put in, without wasting coffee.

Another thing I noticed immediately is how clean it is to use. The anti-static design helps reduce grounds flying everywhere, which makes a big difference if you make coffee every day. The grinder also feels solid and well-built, but it doesn’t take up too much counter space.

Overall, the GU63 solved exactly what I needed: better espresso consistency, easier workflow, less mess, and a more enjoyable home barista experience. I’m very happy with this purchase and would recommend it to anyone who is serious about improving their coffee at home.