Zero stars not worth the time.

Waste of gas, money, and time. Legendaries have too low of a chance to be caught. Pokemon go fest was a disaster. Takes too long to level up. Stardust is too hard to come by. I have lv 30 pokemon that require 7 candy and 6000 stardust. So you will have maybe 8 or 10 ish pokemon past 2000cp.

Supes da man about Pokémon GO, v1.39.1