What is PC-Spa? Better? Why Not New? Repair Schedule? Satisfaction? For Everyone? Problems?

What does PC-Spa Do and how much does it cost? Will my computer really run better after PC-Spa treatment? Why not just buy a new computer? Why not just send my computer to a repair shop? How quickly can all this happen? Will every PC benefit from PC-Spa treatment? What if I have more serious problems that need attention?