I've been lucky with my choices as far as hardware has gone, my only gripe about an ogranisation is related to my first PC which I bought from Evesham. It was my first machine and I had no clue about anything and it was a nightmare, and the "support" was shocking.
Looking back, it was the massive amounts of jazz cigarettes that me and my friends were smoking in my room, and it bascially gumming up the machine till it overheated and died. That said, the "technical support" they sent to my house, the many times they did, managed to completely wipe my hard drive. I was told to back up anything that was important before the goat farmer arrived(which he was, seemingly goats weren't bringing in the cash, so he decided to take a screwdriver into homes for evesham), I know he was a farmer because I seen him so many times and we had to kill time while things installed. I had bought a newer better HDD because I had been lazy and not backed up anything, and just dumped all my stuff on it, I mentioned I would have liked to put my OS on the backup drive, so he just ghosted 98 onto it, swearing to me that all my data would be fine. When I turned to him and said "ok, the OS is on the newer drive, but there is nothing else!" he grabbed his mobile and phoned Evesham "help me".
He chapped my door about 30 minutes later and said sorry, that he didn't know that doing what he done would "erase" my drive. Since then I've really been keen on backing up important files.