The Encore ESP has been working great, you do need to make sure it's the ESP though as it can grind finer than the standard Encore. It has some retention issues that I'm sure a more expensive grinder might solve but otherwise I have no complaints at all, I never need to go anywhere near it's finest grind size.

I ended up buying a third-party single dose funnel and bellows that I would recommend, helps push out the grinds that get stuck and makes the grinder overall a lot smaller

I'd also recommend 1zpresso for manual grinders, I used one for espresso for many years with a gaggia classic before upgrading to an electric Barritza Encore ESP. I also have a second 1zpresso I bought recently for pour over, though it can do espresso grind as well (it was incorrectly priced on Amazon so I got it cheap) and I have nothing but good things to say about it.

I installed the gaggiucino myself a while ago, interested to hear the differences if you know any. Never saw this project when I was researching, it looks neat!

EDIT: This was an 8 month old post...oops