M.J.
I've had good luck with Sears and Home Depot. I researched and found the model washer and dryer I wanted at Home Depot but they didn't have them at the local store. So, I took a leap of faith and ordered online. They were delivered right on time, installed correctly (no problems) and the old machines were hauled away.
I did have one complaint with Home Depot -- they insisted on installing a new metal hose to the washer when I'd just put in a better one than theirs six months earlier. I was peeved I had to pay for something I didn't need and called customer service. Well, they immediately apologized, said it's a policy for liability reasons and sent me a gift card covering what I paid for the new hose. I was very happy with how they handled things and felt it was fair. Overall, a great buying experience.