I came across Mehdi's tour agency online, when I was looking for an agent to apply for my visa. I am so glad I found him, else I would have probably been out of money with no visa. Mehdi is very clear with his communication. From his busy schdule he called me to epxlain things about iran and how to go about it. I ended up booking mount Damavand trek via him. Though we couldnt go with it due to natural causes, he did make last mintue improvisation and we ended up hiking beautiful Tochal. He is quite flexible with his approcah and can easily plan out a realistic itenray based on your requirements. He is very jolly and safe to get around with. If you have limited time and want to optamize it to the core, I would recommend IranHeritageTours. You will actually have a guide who knows the inside out of Iran.