PTACs as Proposed system?

We are looking into a design-build project of a hotel where the owner is requiring in-room PTAC units. My concerns are: 1.) the ability to achieve a LEED building with maybe not the most efficient system out there and modeling a proposed PTAC system versus a baseline PTAC system 2.) achieving ventilation requirements 3.) limited enerygy recovery options Does anyone have experience in a LEED building with PTACs and what approach did you take? I am assuming we can only make up so much energy savings in other systems, building envelope, etc. Thanks!