Here are a couple of things I've found:
1.) It's ninja quiet. Seriously. If you didn't know it was running you wouldn't know it was on. It's a very soft whirring noise.
2.) It fits perfectly into the mount that comes with the kits! Bonus.
3.) It does a nice job at engraving. I was using a v-bit and carving some scrap pieces of plexi-glass. Very nice job with that.
4.) Cutting was lackluster. Although, I have some hopes for improvement, and a couple of thoughts.
a.) This is embarrassing, but it may be the bit that I'm using. Right now the only cutting bit I have left (waiting for a shipment!) is an 1/8" two flute end mill. It's really dull. So I'm sure that's not helping at all.
b.) The spindle will take up to 48v DC. At first I was using a 24V 6A Power supply, I managed to stall the motor a few times. Thinking I needed more power, I ordered a 48v 8A supply from MPJA. That arrived yesterday and I hooked everything right up. The spindle spins CONSIDERABLY faster (at least it seems). I haven't stalled it yet, but it seems like it gets bogged down if I do more than 0.03125" depth passes into wood (pine or aspen). It still cuts, but there's a lot of "skipping" which makes me think the bit needs to be spinning faster. Although, I guess this could be due to the dull bit as well...
I'll report back after I have some sharper bits regarding the cutting action. However, I have some v-bits that I could try out in the meantime. I'd really like to do some PCB milling and picked up a 25 pack of boards from work. If anyone has an isolation design I could cut, please send it my way

I have it hooked up now, so if anyone wants me to test something out, or shoot a video, let me know and I'll get that done.
-Edward