You are definitely not the only one who enjoyed it. I liked it quite a bit.
But it wasn't as good as Dragon Age Origin. The world was too small, the environments far too repetitive, the side quests were mostly jokes (finding a random item in a dungeon and giving it to someone you've never met before and never will again hardly constitutes a "quest") and it WAS easier than DA:O. If I could beat the game quite easily on Normal Difficulty, anyone can. DA:O was a nightmare for me on Normal, yet I managed to get through DAII without dying even once except at the last big battle (just before the second-to-last boss of the game there's a really, REALLY challenging fight near the Harbor area. That was the first time I died in the whole game).
I had FUN while playing DAII. I liked most of the cast (except Fenris and whatever sibling you end up with).
But it was disappointing. I was expecting Dragon Age II, not "Kirkwall Age: The Kirkwallian adventures and escapades of Captain Hawke and the Hawkeneers in the Land of Kirkwall! KIRKWALL!" Had they made DAII a spin off and told us how limited the world was going to be, had they been a bit more honest, then the disappointment would have been less severe.
I enjoyed it. But it's not even shadow of the first game. Dragon Age Origin, on normal difficulty, took me around 60 hours to complete, and I didn't even do all the sidequests. DAII, I am not joking, took me 32 Hours to Complete, and I had done all the sidequests except that broken one near the end (the one about rescuing the hostage) and I only died about 4 times during the entire game, all towards the end (some of the final battles can be quite difficult).