You're 30, and you haven't learned that you can't have everything ASAP, and exactly the way you want it? I have no idea how long ago you worked at the other shop, but the last couple years, a lot of shops had techs that were averaging 25 hours a week. Now that the economy has improved, lots of these businesses are picking up. A week or two I had ran over something, and needed my tire repaired ASAP. I went to 5 shops here in the metro before someone said they had time to work on it.
I'm not saying that the guy could have used a better tool, but if he didn't break anything... I used to use the exact same thing you do. I bought a Mac 1/4" impact specifically for transmission work (I now use a 3/8" cordless for convince). My 1/4" impact is rated at 45 ft/lbs. This is still enough to break a 6mm bolt, or strip an aluminum housing thread. My 3/8" Matco ratchet is rated at 80. Both are rated at 90 PSI, yet most shops don't regulate air pressure. Industrial compressors can exceed 175 PSI.