I've been using the Breville Smart Grinder for the last couple of years and have always felt it was perfectly fine, with the exception being that it would choke on the occasional harder bean. For those purchasing their roasts, that's fine. For me, likely to stuff up a roast, it was an occasional pain in the bum.
I recently picked up a used Rocky Doser model to chew through these occasional harder beans but of late I've found myself favouring the Rocky more and more.
It's not that the Breville doesn't grind as well as it always has, it does.
But whether it's the slightly more finicky requirements of a lever machine or the improvement in my palate (thanks to having Lamkin Lane nearby) I'm not enjoying the results of the Breville nearly as much as that of the Rocky.
Which is a pain, because that damn doser retains grinders like no-one's business.
I suspect it's also down to the clumping (or lack thereof) that's the result of the doser action - consistency is up using the doser.
That said, the eventual goal will be to find a doserless that fits my needs better without having to resort to finicky distribution techniques.