I ordered the tire changer 950 and wheel balancer 550. The machines was shipped within the same week from Texas. Everything worked out well until the last sub contractor ( shipping ). They didn't want to deliver..... National Auto Tools was very helpful. I set up the machines which took around 3 hours without help. It is kind of easy when you are technical inclined. Mounted and balanced the first set's of tires already the next day. Both machines work great and easy when they are set up and the balancer is calibrated ( kind of tricky the first time ). I used older machines for years, and was kind of scared that I made an mistake with the purchase, but today I can only say I am 100 % satisfied and National Auto Tools did a great job with their fast shipping and helping with the shipping problem on the last 70 miles..... to NorCal ! Thank you very much !