I have not found any in depth reviews of the Omega Trail Charger. I have only seen a couple of quick video's. Hopefully Airgun Depot or AOA will do a proper review on them (AOA has them in stock - AGD has them on preorder). There is another company (JWS??? correct initials??) that has a similar unit but I think that their unit is not water cooled. The Trail Charger is the compressor that I have been waiting for. Portable (12 volt), comes with 110 volt inverter, CAN FILL PONY BOTTLES (larger bottles with cool down breaks), water cooled, has retailers in USA, auto shutoff, NOT insanely slow and no shop compressor needed. Still a bit pricey at $800 but well under the next price point up. I already got the OK to get one; just waiting on a bonus check.