Lots of potential, but not so good for solo play.
Due to both a relatively short pump cord this is difficult to use on yourself. Insertion and inflation - especially with lube is tricky.
It works much better with a partner using it.
Once inserted, if left in place, the air will travel to the area of least pressure - outside the body - and balloons there. This is just physics, but does mean that f**king oneself is tricky. With another person involved and putting pressure on the inflated base, it can be way more satisfying.
I've managed to get it to about 8" in diameter without being too worried about failure. It's a good way to warm people up :-)
This is awesome for stretching. So cool.
This product is really one that depends on individual taste. You will either love it hate it or like me will be in the mhh box. Its a good toy does just as described great for first timers wanting a little kink. To the more experienced make sure you check the expanded measurement as some may find it disappointing.
I love this toy, it really opens me up. It feel weird at first and expanding it can feel like there's too much pressure but you eventually get use to it and eventually learn to love it.