The whole purchase of my Dell laptop was done online from beginning to end; I never spoke to a soul. Delivery was prompt, everything that should have been included was, and I've never had a moment's trouble with it. I'm not qualified to comment on the quality but a friend in the industry says they use all good quality parts.
Watch for their "real" specials; sometimes you can get a stunning deal if you keep your eyes open, especially on laptops. Their current "special" is lower specs than the deal I got nine months ago, which shouldn't happen in this industry.