It also depends how informal or formal you want to keep the letter. On mort, the letters go out from students so they are sometimes more informal and describe the program on a personal note, and sometimes it is a solid factual note about the programs we offer and have established. So, in terms of that, you could go either way depending on what you think is more effective. Personally, a factual letter with small doses of personal expression works and has worked the best.
Hope you kinda understand what I'm getting at
Good luck as always.