I loved ME1 and was disappointed by ME2 because I loved ME1 so much. I devoured the lore, every codex entry, and even the long elevator rides where you had to listen to news reports about your earlier actions. The world-building was so much better, and all of this was reduced to a minimum in ME2. ME1 was an epic space RPG with action elements, while ME2 was an action game built around a collection of crew side stories with lighter RPG elements.