I use many TT toys, in particular I ride the cetos 150 a lot, and I like the mare maker 142, and grip 160/170. So my hole is well trained. Yet I wanted to try the GK150. Until now I trained with the mare maker 142 to wear it longer, but although I love riding that mare maker, it is a bit too long to be comfortable for longer term wearing. The GK150 is perfect for that I discovered! I like the width (it slid it easily on first try) and the fact that it is shorter than a mare maker. This big plug sits therefore very comfortable and I can wear it for quite some time now under my clothes. After such a session, my hole is so very open and stretched! I love that feeling. A great addition to my already large collection of TT toys.