Sorry for the late reply- we haven`t spent as much time on the forum as we should have.
There are a few reviews and videos on the KREBS website.
You can also use the KREBS LM25 multiSPRAY- it has less power but generally works really well with up to 75% chocolate / 25% cocoa butter- is cheaper and lighter compared to the LM45 and can be used for oils etc.
Or if you want a dedicated chocolate spray gun, then there is now a heated nozzle version hotCHOC that keeps the nozzles free and had hardly any messy over spray.