Things I liked:Wow...that is all that needs to be said. This gun is a powerhouse! The build is excellent and the gun shoots like a gem. I am extremely happy with the purchase. Things I would have changed:I would scrap the Bipod and include the adapter to fill the gun using a foster quick fill station. What others should know:Let me say something about Pyramydair.com. They don't make companies like this anymore. The customer service is top-notch. They truely care about the customer and will do whatever it takes to make you happy. Thank you, PyramydAir!!!