I got my kit from someone on QRP-L who decided not to build it, and found that the kit was well documented and went together easily and quickly. I tested it and made a QSO using a Tuna Tin 2 I'd built up Manhattan style. The board is designed such that no enclosure is needed and uses PCB-mount jacks for all connections, so it was easy to try without an enclosure. Which was great, because for a lot of us, finishing the project by mounting in an enclosure is the hardest part. It certainly is for me, and I had a bare MagicBox for months.
I left it at work, thinking I'd be able to get one of our shop guys to help me with it, but that never happened. I finally conned NA4SO into helping me drill the holes, but we did run into a problem with the drilling template. It was a little off, although I thought I'd confirmed it was OK (measure twice, cut once!). Not too bad though, and the easiest solution was to pull the BNC jacks off the board and use panel-mount jacks.
I set mine up with a power LED, a semi/full QSK switch, spot switch, and tune pushbutton. The only problem with any of this was with the spot switch - the early kits were supplied with a "bleed-through" resistor that was too large a value - I paralleled a 100 Ohm trimpot with this resistor and now the spot function works as it should...with the added benefit of being adjustable...this could even be routed to a pot for front-panel control if desired.
Right now, I'm using my old Drake R4 for an RX, but eventually hope to build something up from scratch. All-in-all, I think it's a great kit and well worth looking at if you need to interface QRP "seperates".