Got my Hatsan Spark compressor yesterday. Coincidentally, it arrived the same day that I picked up a shop cart at Harbor Freight, and my Plano XL Shooter's Case arrived. I hooked it up to my marine deep cycle battery and started to run the initial leak test. CHUG CHUG Chug chug putt. Whoops, I forgot to charge the battery and it was nearly dead. 
I charged it up for a few hours while I sighted in my scope for shooting slugs (different POI). The yoke system from the shooter's case snapped perfectly onto the cart handles, so I can have everything in one spot. I filled the gun from 100-200 bar in less than 5 minutes, running through a small filter. (Ironically, this filter leaked so much with a hand pump that I couldn't use it.) I'm not impressed with the paint job (seems bubbly) and lettering (smeared) on the compressor, but otherwise it works very well. My plan is to move the compressor onto the lower shelf of the cart, and get a longer fill hose running through a gold filter. Very happy with my setup. (And no, I won't normally be using it next to the furnace & hot water heater, I just didn't have any other non-messy area to snap some pics. )
