I_e researched this item for some time and found that any reviews did not give me enough information on which to make a decision to buy. So, I bought it with a view to trying it out and most likely returning it to seller. However, it has by far exceeded my expectations. With a good capacity compressor it blows the mortar onto the wall beautifully. My priority was to coat the walls with a wet mixture before adding the float coat. It has performed this perfectly.