Have any of you guys used or have a ST Pro 395? How good is it? I know it is a Graco but I just haven't seen or used this model before. One woodworker at the job site I am in right now brought this sprayer to me to look at it trying to sell it to me cause he has no use for it, he told me he got this sprayer 8 years ago from the States and only used 3 times he still have the manual, it seems in mint condition, very clean, I tried it today and I am so surprise on how quiet it is. Any advice or suggestions from any of you guys that has one or used to have one of model. Thanks