I am definitely a fan of cock rings and I actually grabbed this one from a deal going on here, so it was free! Needless to say, trying something for free never hurts. I went back and checked the pricing on this before I received it and the price isn't bad at all! Since it was so cheap, I was guessing that it was going to be a bust and although it wasn't a showstopper, this cock ring was definitely worth it.

If you're hoping to use it for clit stimulation, it works best to be on top (whether it be on top of a dildo, person with strap-on or penis). I've used cock rings in the past that had clit stimulation that hurt, but this one is a really soft, jelly-like ring (TPR silicone) that has a cute little butterfly as the clit stimulator. The body of the butterfly is what would be directly on your clit and it's about half an inch of a smooth, sturdy, jelly-like material surrounded by the "wings" which are small, soft, jelly-like bumps.
I really like the way it was made with two textures for the clit stimulator because I often go numb if I am rubbed too long with no change in texture, so it was a plus.

If you're using it for increased endurance, I suppose it depends on the one wearing the ring. My partner has complained before about cock rings being too tight, too loose, or too hard, but he didn't complain about this one and I definitely noticed a change in his endurance. He also didn't get frustrated with this one as he has in the past.

It has internal batteries, which are always a plus for cock rings, and it lasted the full 15 minutes the first time and for another 7 minutes the second time we used it (before the vibrations weakened). Unfortunately, this one is disposable and I wouldn't recommend using it more than a handful of times.

Appearance wise, it never hurts to have a cute toy and this one was adorable. It was purple with a pink battery cartridge (my favorite colors) and had the cute, little, butterfly clit stimulator. I loved how it looked.

I didn't do research on how to wash it, but I noticed that the battery cartridge comes out of the ring very easily, so I just decided to take it out and rinse the ring by itself in lukewarm water and then used toy wipes to get inside of the little grooves and holes.

One thing I will complain about is the switch to turn on the vibration. It was tiny and confused us both at first because it didn't budge very easily and I personally like buttons more than switches.

Overall, it was fun for both of us (more so for me), and although I wouldn't reconsider buying this one again, I would suggest it to people who are new to cock rings and who don't want to spend a lot before they decide they like them.