We have no trouble at work with dell support,
used to have some trouble sometimes though,

and don't forget it's hardware support really, so when you're calling for little problems with programs it really depends who you got on the phone
some might be helpfull, some not.

So if you don't know shit about pc's, buy it from a local shop so you can harras them everytime you get a popup window or can't understand something when trying to install a program