After hearing the application, the Planning Board shall determine whether any action other than rezoning will properly protect the interest of the community of the municipality. The Planning Board shall review the application in light of the existing Master Plan, the conditions existing within the community and the expertise of the Planning Board in matters of land development to determine whether the applicant's proposal should be favorably recommended to the City Council. The Planning Board shall make specific detailed findings of fact and conclusions of law concerning the applicant's proposal as it relates to the review standards set forth below. It shall be the applicant's burden of proof to present sufficient credible evidence to the Planning Board for the Board to make appropriate findings, conclusions and recommendations.