Came ready to use. I like the two air outlets provided. Is quieter than another compressor I had, but still wish I had an intake muffler. Guess I'll have to build my own. Everything works as it is supposed to. No leaks and does a good job for such a small compressor. I am very happy and would encourage anyone needing a small garage compressor that this will fill the bill nicely. I've had it for a short time, but have used it quite often and it operates by nail guns very well. I am happy with it.