The sim program is standard OPC material, very fair and something no trained pilot should have a problem with. The challenge lies in working properly with your colleague, who might be from a different nationality with a different cultural mindset, is used to different SOPs, is like you maybe not rated on the 737 etc... in a time pressed environment (Sim time is limited) Application of CRM is key and what recruiters primarily look for besides displaying a base level of flying standard.
Interview is pretty standard, no pitfalls here.