I know a lot of people who don't like Adorama for whatever reason. I have found them to be as good as any retailer of that size. I have also bought a few pieces of used equipment there over the years and have found them to be well represented. They even CLA'd my Leica IIIC before sending it to me. On the other hand (since Adorama is obviously listening) you need to do a better job packing things. Throwing a glass thermometer in a padded envelope for example is a bad idea.
Have you got your order number handy, so we can check who packed it?