I had great service from Jennings, My iMac was running painfully slow taking several minutes to open an application. I called Georgina who explained to me exactly what would be the issue and agreed to take the Computer in on the same day. I dropped it at the end of day they fixed it the next day and I collected it the following morning. In total I was 1 business day without a computer which is excellent service. Since getting the machine back with a new hard drive it has been like a brand new machine, I can't recommend these guys enough.