Obviously not a Hollywood, high-budget film, but if you can get past that it is really interesting. Yes, the Producer/Director/Writer/Star is being very self indulgent. Of course you learn from the film that he has always been that way. But this film is an outstanding a study of a male viewpoint of relationships and sex.
He repeatedly says that all he wants is someone he can be totally honest with, and he hears several women tell him they want that honesty. Of course the truth is that we only want our partners to be honest when it matches our own view of reality. When their truth conflicts with our view of reality we either try to argue them out of their truth or force them to deny it. In fact, as much as Caveh wants the freedom of being honest with his partners he never gives them that same freedom.
Don't rent this for the sex scenes and don't rent this for a great plot. But if you like psychological studies of relationships, this film is well worth the time and money.