I got it 2 years ago and it still seems to be holding up. Right after the injection, I liked it most when it was swollen, and as time passed it seemed to return to how it originally was, so when I took before-and-after photos, the after one was definitely a little better.
That said, I do not like it in a dramatic way. Still, better than too much. After getting this, I guess it was not bad, because I also got nasolabial filler 3 months later, and I am not even sure whether the nasolabial area is still there now. Under the eyes, when I smile, it comes out puffy.