In some areas, usually congested cities, where Tesla are very popular, the service centers can get pretty booked up. In other areas the service centers (and Superchargers) are much easier to fit you in.
Since Tesla are eligible for free single access to the HOV lanes in most cities, that is where they tend to have more volume. In those congested areas the free, single person, access to Car Pool lanes and the use of Autopilot during long commutes make the cars very desirable.
Someone who takes their car in for a issue, and has it fixed while they wait is usually not going to post about their experience, but someone that waits for over a week to get their car back, and perhaps gets a gasser loaner, is going to be hot under the collar.
Tesla is delivering twice the volume of cars as a year ago. It will take a while for service and Superchargers to catch up.
Elon has mentioned that Tesla does not have enough money to pre-build infrastructure, with all the employees sitting around with little to do, in anticipation of future volumes. Trying to build just in time facilities, but some areas are simply overwhelmed.
In California the gas prices have jumped to over $4/gallon. This brings lots of customers into the showrooms.
As far as body panel fittment, it is not something that effects the drivability or usability of the vehicle. It will operate just fine with a panel gap. Personal pride comes into the picture, as people buying a new car have come to expect good panel fits. In the 70's panel fits were horrible compared to todays precision built cars. Nobody cared then, but now the standards are much higher.
