This company tried to rip me off (and partially did).
I knew in advance that I needed the lid switch replaced on my washing machine (it was clearly broken). The guy came and confirmed it and gave me a quote of $310 dollars for the part plus installation. I thought it was too high and told him that I would rather replace the machine. I got him to repeat the price a couple of times just to make sure I heard it correctly.
So I paid him the 60 dollars for the visit. I then went online and checked the Kenmore website and found I could order the part for $30 dollars. I called a couple of other companies and got "real" quotes ($125 dollars total installed). The work only took the real guys 15 minutes.