Disclaimer: I am the worlds worst painter. My painting projects are always a disappointment. Over the years I have used Binks sprayers, airless and rattle cans. All have given mediocre results, malfunctions, or were a pain to clean up afterwards. Then I found this item. Since I have multiple air compressors from small to large, why not use their power to run a paint sprayer? No more bad airless motors to fail or gum up. This item has basically no moving parts (good) and is rather simple. It is rather clumsy with the paint pot, hoses and gun requiring management. If you use this in a stationary position it's not a big deal. If you use it like I did, going up and down repositioned ladders, it is more of an issue. This was used to apply fire retardant spray on wood siding. It worked FLAWLESSLY. Even better, it cleaned up like new. Sure I was using a water based product, but this thing really did a good job. Someone mentioned in another review they wished the pot had a gauge. The one I received has an adjustable regulator with gauge, making adjustments to the pressure a snap. No need to mess with your compressor. Just adjust the built in regulator. I also pre-strained the material before adding it to the pot. Also, I added an inline water separator just ahead of the pot. It caught quite a bit of water vapor so as not to dilute the applied product.