I can completely understand why someone could consider this as one of the greatest expansions of all time, as it adds imaginative situations, a whole new map, many new enemies and items, etc. It basically perfects everything about the game. But by the time I crossed the gate I had played Oblivion for like 100 hours and I was extremely tired of it. Just before uninstalling the game I played the Ghosts of Vitharn quest and that was pretty cool.