One of my favorite episodes in the first season is 'Masks,' as it shows that Robin will do almost anything to beat Slade, regardless of whatever risks he has to take, whatever laws he has to break, and whichever friends he has to beat up (as Red X). Sure, Teen Titans can be goofy at times, but it has its cute moments, its romantic moments (between Robin and Starfire, as they are my favorite pair), and its dark moments (the dynamics of Robin and Slade's interaction).
Some see it as a rip-off, and some just don't like it, period. I know the animation style the producers use for Teen Titans doesn't appeal to everyone.