I like the character, and I like the actor, I thought she was pretty good. But! I can't help but think how much Season 7 changed because they had to introduce an almost brand new main character. Imagine if Terry Farrell had stayed for the last season. How many episodes change, pretty dramatically? There'd no doubt be a couple of Dax focused episodes, but not to the level that S7 focused on Ezri. Also, how does Worf's story change, or Dr. Bashir? Or even Quark? I suppose the writers could have focused less on Ezri, but they didn't. And it turned out pretty well. But still, I wonder how much they had to re-tool Season 7 because of Farrell's departure.