Dear MS007, it's very - and let me emphasize it - VERY different for everyone. It depends on the shape of the cheeks you have, how vigorous do you plan on the blowjob to be, etc.
But the main thing is for the receiver to like it, right? So, you better test beforehand if the one you are planning on wearing this toy for likes vibration on their sweet bits. Then try to mix sensations. Then go on and buy OraLove without any doubt. Its design is called revolutionary for a reason - it works for the majority of people, and it feels pretty amazing.

That said, although it held on flawlessly and performed impeccably, I didn't thoroughly enjoy the experience when I tried it out. It was slipping off at first because I wasn't able to find the right angle. I did it after some struggling, and then the vibration kicked in. My partner did enjoy it very much, but for me, it felt funny - like in a cartoon when a character has a bee in their mouth and it's trying to get out.