Petra,
I received my replacement Suito last week and was able to set it up yesterday. The flywheel spins true and the unit paired and worked with my MacBook Pro and iPhone. The Upgrado App (available in Apple App store for iOS devices shows the trainer has most up to date firmware 191 hardware revision 3.
A few fine points:
-Calibration with Trainer Road required pedaling to approximately 20 mph and holding for about 5 seconds before letting the spin down happen. This tip was supplied by a user on the DC Rainmaker Suito discussion and it worked for me once. Other times I could not calibrate.
-Bluetooth connection may be finicky. Initial setup was plug and play. Returned to the trainer later in the day and iPhone did not connect despite restart. MacBook connected with TrainerRoad app and dropped. Major frustration! While shopping for a replacement trainer I came across a Kickr Core user who noted that trainer did not pair if more than one Bluetooth device was in range.
I returned to the trainer with iPhone and then MacBook as only Bluetooth devices nearby and everything worked!
So, try pairing with ONLY ONE Bluetooth device nearby. When calibrating spin to 20 mph.
Best Luck!