Just got back home from the Return to Ravnica prerelease an hour and a half ago. Played Azorius. Went 3-2-1. Two wins were against Selesnya players who were still green behind the ears, one was against a no-show; the losses were both against Rakdos decks way too fast for me to handle with my rather mediocre sealed pool (well, technically one of them was Golgari I think, but he was playing Jund colors). The tie was against an Izzet control deck, Control v. Control . . . yeah. Ranked 25th at the shop, a somewhat distant stone's throw from the top 16 that continued to do stuff after I left.
Overall the event was more than mediocre, but I wasn't as psyched as I was going undefeated at the Avacyn Restored prerelease, for obvious reasons. Really bummed that two of my six Rare cards (including the one in my Guild booster) were Palisade Giants (2/7 for 4WW that redirects all damage you or your permanents would take to itself; pretty awful for the cost). Two were really good Selesnya cards, and I tried using them at first, before concluding that splashing Green wasn't at all worth the trouble. The other two (the Promo and Cyclonic Rift) were the bombs around which my deck essentially needed to be constructed.
It's worth noting that I got a few cool things for my Rafiq of the Many Commander deck, though there are still other things I want from this set. Notably Isperia and Sphinx's Revelation, but also Azorius Charm (I got the Selesnya one!) and Selesnya Keyrune (I will mention here how much I love the Keyrune cards as a concept). So much trading and deckbuilding and budgeting and what nonsense lies ahead, because I really can't afford anything to buy anything else after this event.