When I was told my simride was in the Classic, I went to Bankstown and hooked into a twin piston sim.
It cost me $80, but it was the best money I'd ever spent. I had only flown 1 hour in the previous 7 months, and that was in VMC.
My scan was all over the shop for the first 15 minutes, but after that it started coming back.
A mate of mine who had been through the QF simride a few months earlier took me through the patterns and approaches. I found this was great preparation for the sim proper which occurred the next day.
As the QF sim is flown at quite a light weight, the speeds are quite low - ie 120 - 180 kt, which you can fly quite easily in a twin piston sim. Hence there is no need at all to practice in a jet sim. Save your $$$.