My experience with JPS was about 5 years ago. At that time there were 5 or 6 employees including the owner. Also at that time, if I remember correctly, the owner experienced some health and personal problems. It may be the owner's problems have passed and the focus is back on car building.
The build process was very annoying, and being generous, JPS was less than standup during the build. In short, I would not do business again with, or recommend them to anyone.
Here's the sad part, JPS does a pretty good job building cars. Mine is now 5 years old and I've enjoyed it. Keeping in mind the price point, I feel the car was worth the money, excluding the unnecessary lack of truthfulness and some minor tweaking.
Perhaps my expectations were too high, but I do my damndest to ensure people who do stuff for me get paid promptly and I expect to get what I pay for when promised. Obviously, stuff happens, so if parts don't come in, people get sick, delays happen and the person paying for the build deserves the truth. I always remember those who respect and disrespect my time.
I would not get into any dealings with JPS that ship has sailed. However, if any SOCer has a chance to buy an already built JPS car, enlist help from one of our SOC heavyweights to check the car out, it may be a good bet. I like mine.