That's interesting, Psyd... I ordered the same model from Sweet Maria's only to be told they had just sold out. I ended up getting the open-hopper model and I'm slowly dialing it in for my Silvia. The SM site says you can run the burrs together without damaging them, which sounds weird - maybe the much slower RPM makes it okay, I dunno.
The two concerns I have right off the bat are (1) the burrs aren't centered with each other exactly - when cranking, the sound of them meeting comes & goes, and so the grind isn't all that consistent, especially for coarse; and (2) the adjustment likes to wander a little bit. There may be ways to fix these things, I just don't know what they are.
That said, it still beats the pants off my Virtuoso. I have neither cash nor counter space for a Macap (or, ok, Mazzer

) just yet, but luckily I think this Zass will hold me for a while while I get my technique down etc.
I think this because last night's final pull was 24 sec, and this morning's (grinding halfway between the 24 sec point and the choke point) was 38 sec. I don't have a tamper that fits the basket yet, and I can tell my distribution is way off, but these are the best results so far. Thanks to the Zass and reverse temp surfing, I've finally made shots I actually enjoyed drinking. But as a n00b, my standards (and palate, budget, etc.) are surely vastly different from cannonfodder's, so take it as you will.