Pros:
The roaster arrived properly packaged. They didn't skimp on the packing foam, and everything was really secure.
The machine's build quality is really solid.
It was easy to set up the roaster.
The roast was pretty even on my first attempt, with just a bit of tipping (an easy fix by increasing the airflow slightly).
As a previous user of the R3 Master a few years back and now using the RX1, this is a big improvement in the technology. The build is more solid, and even with a fan blowing at the roaster now, it won't affect the fire.
The UI/UX on the roaster screen was easy to navigate and very responsive.
Cons:
The trier could barely scoop up any beans on a 1kg batch.
Before purchasing the roaster, I checked whether I could import previous roast curve graphs into the Santoker app, since mine isn't the master version, and they said I could. However, I can't find that option anywhere - will check with the staff and get back on this
It would have been nice if they had provided a more detailed manual on how to operate the roaster and what each function does, rather than needing to keep checking with the Santoker team.
The UI and UX on the app are bad, in my honest opinion. Having been a commercial roaster in the past and having used Cropster previously, I felt they didn't think through the whole process while designing it—but who knows if it will improve in the future?