I don't believe I would support MEK to overthrow the present Iranian regime. I would not trust leftists to hold elections. But they might hold them. Didn't the Sandanistas hold promised elections? And lost?
I would better trust MEK with sat photos and explosives.
MEK has no such power to take out the Iraian nuke facilities.
From the hot pan of mullahs to the boiling pot with MEK. Persians will not go for that.