We've gone in early June for the past two years. The parks were pretty crowded, but as long as you use FastPass and make your ADRs you'll be able to do everything you want to. The weather was very HOT and HUMID! Thunderstorms every afternoon didn't help matters much. I was dying from the heat, but my DH and DD were fine. We always go after school ends up here in PA. We stay at SOG, so the cost is always the same....I'm not sure what season early June is as far as Disney resorts go. We're hoping to go back next June as well!