So you avoided the local distributor but then wanted their assistance when you had problems? If you are talking about Joystix, I have bought games from them in the past when new to hobby. When I bought my ST pro nib, they opened it up and let me play/inspect it before paying. I probably could of saved money buying from another distributor out of state but not worth the risk imo for the exact reason you described.
It sucks you had so many issues but you were not exactly clear what those issues were. It is very common for nib games to need adjustments or small fixes. If Stern had to pay for a tech to come out to every home to adjust switches, swap out bulbs, and dislodge stuck balls on new games they would go broke in weeks. Pinball is different than other industries where the expectation is games will need constant maintenance and end user will do that maintenance. If a game has serious problems like node board failures, Stern support is usually good over the phone to work things out.