A few weeks ago I was up at the ToolNut and I took a vt25big home with me to try out for a while. Its a powerful compressor, it fills extremely fast, was able to handle any gun I used and felt like a never ending supply of air. My only issue with it was how loud it was. Coming from using the JC10 I just couldn't get used to how loud the vt25big was. I mainly do trim work so I found the vt25big just to much compressor for my needs and it really needs to be used or setup outdoors. I don't do any spray finishing so I can't tell you how it would handle it, but I don't suspect you would have a problem with it. I always blow off my tools at the end of the day and occasionally need to blow out the garage and the compressor never runs out of air.
I returned the vt25big back to the ToolNut and took the vt20tb, I'm much happier with the vt20tb. Its got a much smaller foot print, really quiet ( a little louder than the JC10), a really cool storage box, and also has a 100% duty cycle motor. I've only been using it for 2 weeks now and it definitely is a keeper. Once I get some more time using the VT20tb I will be doing a video on it.
Dave