His character in Madame Antoine is frustrating, but if you can get past that there are some very enjoyable moments. Perfect was pretty great, although he doesn't get any kissing scenes (a tragedy). I Need Romance 3 is by far my favourite role for him (and totally different from the other roles I've seen him in), but if you watch that first then you're starting with the best.
I have not watched any of Sung Joon's dramas, would you recommend this one as a starter?
