first, a general overview of language Persian is: Persian is an easy language cloaked in an air of seeming difficulty. It’s not easy to learn for two reasons: 1) it uses the Arabic alphabet; 2) it’s just not as easy to find places to use it as with languages like Spanish, French, German, and so on.
The language itself is quite easy to learn though, and because of reason 1) above I would recommend that anybody seriously learning or teaching the language over a long period of time (say over a 4-year period in university) should spend the first six months or so without learning the alphabet. It’s much easier to get an idea of what the language is like when you don’t have to up and learn a whole new alphabet at the same time.