Hi,
Hobbyist here and owner of a J1, not a J1s
Once the profiles are tuned for the material, I’ve been able to print PLA, ABS, ASA, PETG, PETG-CF, PC, PP and TPU95 without issue. I’ve had some troubles with FilaFlex 60A, but this material is extremely soft and a direct feed is needed.
As for support materials, I’ve successfully used Aquasys GP and Aquasys 120.
I’ve not yet printed anything in PA.
For all of these materials, the all-metal hotend was suitable.
The bed temperature was also ok even for ABS/ASA, PC or PP (the later with magigoo PP, glass side).
Hope this helps.