How much is enough? - as much as you can afford
What should it cover? - everything you can't do in the aircraft or prefer to do safely.
What else - arrive at the sim centre with (a) a plan (b) all the docs you normally carry in the cockpit.
CTC/CP to ensure that the sim centre is aware of 'the plan' if you are using their staff.
If you want to do LOFT, Role Training, or need help with remedial training then speak to the sim centre CSFI.
G.
