The first time I used one, especially this big one, I was surprised at the girth of this monster. I've used other toys before, and of similar if not larger in size. But this thing, at the biggest girth felt just wonderful, and a bit tight. I sort of held my breath and bit my tongue a bit to get it past that point. Once in, the feeling was great. Actually kept it in while I went out shopping for awhile.
If you turned your body certain ways at time, it would give you a very erotic feeling (maybe how it was hitting the prostate). The only downside with keeping it in for awhile is the base is a bit uncomfortable. Could have been a little narrower at the base to fit along your butt seam!
What a great product. I think I will also look at the next smaller size, and try going longer with it.