New to zwift with elite quobo smart trainer

Hi I am new to the world of zwift and just bought a second hand trainer, can anyone tell me if I need to calibrate it or anything.

I have installed zwift paired the device and everything appears to work fine, just no idea if I need to do anything else and to know how accurate I am as compared to on the road.

I don’t have a power meter either to test on, I don’t know my FTP but set all other settings in zwift.

I have not installed any zwift apps or anything like that.

Any help would be appreciated