TripAdvisor (TA) offers a platform for private guides to promote their business and for travelers to exchange ideas, but as a legal and responsible travel agency, we strongly suggest tourists avoid such private guides!
They are totally self-employed, offering personal guide service without fixed office site and office phone number. Usually only a mobile phone number is available. Their service standard can not be guaranteed because they are truly riskers - evading taxation and the supervision of the Tourism Bureau.
Imagine when you encounter an emergency, trouble, low-quality service, or even a trap, whom could you complain to? Don’t put yourself in such an embarrassment to know the right choice - legal travel agencies, like Mystery Of Iran, under the supervision of tourist administration.
What’s more, those private guides might not have legal tour guide license, and their guiding skills are on various levels. You could only bet on luck when following them.