I just got done watching my first Taiwanese drama, and it was Hi My Sweetheart. At first I thought the quality was a little bad, and that it was a little too goofy, but it got REALLY funny and sweet very quickly. I ended up absolutely loving this show. I loved the characters, and the actors did an awesome job. My only complaint is that it could have been a couple episodes shorter. At times I felt like they were just stringing us along a little too much. Even though I loved the actors and I think they did a great job, I still wouldn't mind seeing a Japanese version of this since I think the quality would be better and it would probably be more to the point.
I also really loved the poem Chen Boa Chu read in the first ep.