I had originally purchased this dildo along with a harness and had forgotten all about the suction function! I feel I missed out on a year's worth of use for this very reason. It adheres well to a variety of surfaces, even my textured dorm wall where tape doesn't stick! In a harness I find that it bruises my lower abdomen and I wouldn't recommend it for use in strap-on play.

It's a little on the large size with a nice girth--which I like--but it is very stiff, really very hard and inflexible. While the exterior feels smooth to the touch enough, this sensation is merely skin deep. With enough lube and gentle, slow penetration it's alright, but I wouldn't recommend it for anal penetration (and since it's made from silicone, don't use silicone lube). I like this item more for sucking on when I'm feeling especially kinky. I find it otherwise leaves me feeling raw and bruised on the inside.

Although it suctions well, this isn't a dildo I would recommend for purchase. I find I rarely use it. It's not the simplest to store and doesn't come with any storage accessories, which is a bummer for me. I tried using this on my partner awhile back and he loved it for the suction, but also complained about the stiff feeling and refused to let me use it with my strap-on. That and he used my entire bottle of lube over just a two week time span.

If you're having trouble finding a suction dildo that sticks to your wall, this will do the trick. Otherwise, try looking elsewhere first. It's mostly just painful and costly with all the lube you'll need for it. I guess if you're into BDSM it might be a nice punishment for someone ;)