With my last home delivered Dell, Credit agreement cleared Wednesday. I checked the website on the Thursday: Collect, assemble, build, test. Friday: same. Monday: Ready for despatch. Tuesday, I got a phone call: "Can we come tomorrow? If not, when's suitable?" (lovely Irish voice on the girl as well). Wednesday, turned up ten minutes early.
Shame "we" didn't mean the girl and a driver, but still, pretty impressive shipping and courier, build (Dublin) to delivery (SW London) in a week.
Since then, I've had two Dell notebooks, which at various times have run simultaneous enterprise class server products, plus a couple of heavy duty desktop apps, or 3 different VMs running servers, plus host desktop apps, with never a problem.
The only problem with Dell I've had is the casing on the lead from the PSU, which tends to come apart after about six months.