Have you done the TOEFL/TOEIC and Mollymawk psychometrics yet?
I did the assessment in the 737 sim roughly a year ago. It was simple and very fair, one NDB and one ILS, a little bit of airwork. All raw data. I recommend getting used to the LIDO-charts since they don't use the Jeppesen ones.
I've heard rumours of that some people do the sim-screening in the DA42 nowadays. But I'm not sure of this.
Have you recieved a date for the sim yet? I'm still waiting for a date.