“Prior to purchasing this grinder, I've spent a lot of time reading comments that other buyers have left, and a lot of them were negative, most of them were going on about the error message on the portafilter holder. To be honest, I too have the error popping up, but only on the first few days when I was still figuring out the grind settings. However I do not have the error at all since I got everything set up. I just needed to ensure the portafilter or the funnel is pushed against the back of the holder and BAM it works every single time.
I'm a slow learner, I've spent about 150g of the free coffee to dail in the grinder, but since then, the coffee was very consistent, I didn't have to touch the settings anymore. I do not use any WDT, and yes I see what others are saying that there are some crumbs straight out of the grinder, but guess what it is fine for me, I didn't get any channeling from the very beginning, so I don't see a need to do WDT.
I've been using the Libra for about 1.5 weeks now, pulling 3 coffees a day, more in the weekend. I've been very happy overall. It is very low maintenance.
The only con for me is that it's still quite loud despite how other have described this as a quiet grinder, just with a less annoying pitch.”