I have a 730 and have had it for many years (can't remember how long) but haven't had any issues. When people are talking about issues with the 7 series, they are talking about the 3 new ones 710, 750 & 780 which have only been out I think a little over a year. As with a lot of the machines, issues are usually when they first come out. They don't seem to always get the "bugs" out when releasing them