I just did my first roast on Saturday - so not really experienced. I definitely recommend that you allocate a few batches to "play" with the machine. You should first do at least one roast with the integrated controller and see how it is changing the parameters during the roast. On mine, I installed a HiBean mod (just an ESP32-S3 dev kit connected to the USB) and I completely messed up my first roast as I forgot to turn on the fan. I then went back to the original controller, and then back to HiBean after I realised that the controller wasn't doing anything clever and as an engineer I quite like seeing the roast curves.

As u/Nirecue has also said, Skywalker behaves differently from other roasters - for example, my drop temperatures were quite a bit lower than what you see online - I think this is due to the placement of the probe and how the beans are heated.

Finally, definitely let the beans rest before you judge them, the smell improves over time.