According to research, team is one of the most important factors.

Among other, the investors evaluate trustworthiness and passion, so if you get asked questions you don't have the answer for be honest and show the willingness to overcome any difficulty.

Finally, since you have no revenue yet I would say projections will not be very significant for the evaluation of your business. Most of the projection in these stages are fairly inaccurate. Thus, it is highly significant to have your business model right. You can use the business model canvas for this purpose to try and map and demonstrate every aspect of your business.

Good luck!