I don't mind her though she's not my favourite cat for sure xP. I don't recall ever seeing or having her in AC:GCN, AC:WW, or AC:CF though and I didn't really care about villagers that much until AC:NL so I never really knew her until earlier this year xP.
I really like her, although not as much as I thought I would when I got her. Rosie's definitely cute, but I think it's the personality (or my Rosie's personality [who has been mad at me more often than not for putting ACNL down for a day or two]) that's a little off-putting.
I got her when I first started New Leaf. But I voided her because we just didn't click. As I got active on the forums months later, I realized so many people want her and I could have given her to a good home. Dernit!
I had her in the GC Animal Crossing and she was pretty fun. Knowing that she's a peppy personality, I'm not sure if I'd like her in New Leaf or not, haha.