customer service good and bad

I have had some good and some not so good experiences lately..... on a scale of 1 to 5 one being the worst.

Amazon: five--- I ordered a 18-200 Tameron Lens for my camera... it came quickly and I was excited.. I used it and I was not happy. My photos were fuzzy I was really disappointed because I thought I had done enough research that I really was buying a good product..... a couple of months later I was speaking to someone else about my lens and they suggested I had a faulty one and I should try to exchange it. So.... I emailed Amazon's customer service and told them how very unhappy I was with the lens and did they think there was any thing I could do... this was on a Monday late afternoon..... Well guess what I got UPS Tuesday .... a brand new 18-200 Tameron Lens all I had to do was send my other one back.... now that is great customer service.

Zappos: five--- Order shoes on Tuesday and you will have them on Wednesday... if they don't fit easy to exchange.

Techna glass five--- they fixed my rock chips for free.

Midas Muffler in Kearns... minus 3-- took the truck over there last Thursday because my brakes were grinding. After waiting for over an hour (when I called they said they could get it right in)... I was given an estimate for over $800.00 bucks... I nearly fell over... so I called Randy and he said to get a second opinion.. Then they came back and said they could machine the rotors and it would be 500.00... so I called again... Randy still said no. So finally at 10:30 am I was on my way back home (i got there at 8am) with brakes that still did not work properly. Randy took it to another shop on Friday and gave us 4 new rotors/pads and fixed a vacuum hose.. for 500.00...