Never used a Graphtec so I can't speak for it but I will tell you about my Summa experience. 100% POSITVE. Tech support (the two times I needed it because I screwed something up) answered immediately and actually knew the machine inside and out. They walked me through resetting the machine and correcting my problems in minutes. The other time I had to call we had a power supply go bad on a 10 year old machine. Tech support again walked us through taking me machine apart and testing the power supply, checking the fuses, and checking the switch before making the diagnosis. Our other two plotter companies would have just told us to send it in for service. Summa did what they could to get us back up and running as soon as possible.
Quality-wise the things have been virtually bulletproof. They've been beaten and abused and still just keep on cranking out work.
+1 ...
years ago, I was in charge of purchasing a plotter for the company that I worked for, a large production company.
I looked at all of them, Graphtec, Ioline, Roland, etc... Some of these companies even brought in a machine to show off to us. I narrowed it down between Graphtec and Summa. I decided on the Summa, and it was the best investment that company could have made.
I have since gone out on my own, and when I was ready to purchase a plotter, I just called Summa. There was no question in my mind who I would purchase from.
A well built machine, and like Pat said, when you need customer support, they are only a phone call away. I have never had a call go unanwered. Heck, I have never had a tech support call go to the next day. Its always same day service.