I liked the smaller Diva, except for a couple things. The main two were: it would sometimes overflow within an hour. This was before I got on birth control to keep my periods in check, but I still have heavy flows.
It also was rather short for me, and when properly situated, I really had to reach up in there to get it out, even though I hadn't cut the stem at all.
Another problem is that it leaked occasionally, even when it wasn't overflowing. I think that this had to do with it fitting all the way up, because I can't manoeuvres it well because my vaginal canal is so long. It did open fine (used c-fold), and I always made sure to rotate it, etc. It's not a problem with it slipping, I'm pretty sure, so other than it just being too far up there, I'm at a loss as to causes. I'm used to wearing a liner with my cup at this point, but it's still irritating that I have to waste that much because my cup is leaking.
I also would have liked having a solid stem instead of hollow, but that's a minor detail.
As for replacing it, I've been looking at the large Yuuki, with my only real concern being the stiffness - melissa569 posted about it being significantly softer than the DivaCup. There are just so many, though, and I've read a bunch here and at other places, and thought about it, and have decided that help would be immensely appreciated. Does anybody have any advice or recommendations? Thank you so much!