This is by FAR my favorite vibe! I have had a few, probably not as many as some folks, but enough to know good from bad. This is by far the greatest!
Honestly the only improvement I could think of, would be for this to be the junior version and perhaps make one a with a bit bigger "bulb" on the end. I have had this for nearly two years and I reach for it every time I need a quickie!
I have used it for myself, with my husband and on two of my girlfriends and everyone is shocked by how fabulous it is!

I've even found it makes a great divorce gift for my friends! I've bought a few now and everyone has been most appreciative!
I know some people mentioned it was not large enough, but there really are NUMEROUS ways to use this toy. If you can imagine it, it will do it and work great while doing so!
The flexibility of the shaft makes the end of it work just like a tongue using a loose wristed flicking, use the butterfly on your vulva and the tip on your clit instead, turn it around backwards. It is also amazing to double with a plain dildo, using whichever end of this you find fun for the day on your clit while having a dildo inserted, be ready to have a monster orgasm! WOW!!!! I could really go on and on, but I will let you try out what you can come up with on your own!

If you've got it and for whatEVER reason you chucked it back in the drawer or in your little goody box, get it back out and experiment with it! I'd like to have one in my car and in my purse and every room in the house!

Also, don't forget it is fun in the tub as well!
Very easy to clean up and small enough it can be carried around without much notice.
I just wish I could find some batteries that could last as long as I can with this thing!!!!!