There are some pretty pictures available at the Gallery in the Barad Guldur screenshots section. I personally like Gal's impression the best as it does great job at captivating the scary atmosphere of the tower. Or you could go and admire Mel's gazillion legendary xp runes!
As for the loot, Allatar and Tukin are the proud owners of new armor pieces. A few people also had done their homework and acquired the pretty Galadhrim War Steeds immediately. For the rest of the folks I'm afraid it's more time in the Dungeons.