This harness is awesome. I am pretty chubby, ranging between a size 20 to 22 and there is plenty of strap left over, so even bigger girls would be able to rock this harness to problem. The fabric parts are plush, so it's really comfortable against your body. The straps are really easy to tighten and release and once I have it on I don't even have to readjust straps. They stay as tight as you make them to begin with.
This harness is intended only for dildos with a flared base. You can not use double ended dildos with it due to the fabric behind the ring restricting access to your nether regions. You can make sure to also get some joy out of being the dildo wielder by popping a small vibe inside of you. The pressure of the dildo as you're thrusting in combination with your buzzy friend inside you will make sure you're getting fun sensations while working hard.
I feel totally sexy wearing this. I particularly like the way the straps hug my butt cheeks in the back.
If you've never used a strap-on before, be prepared to work hard. It's hard work. If you can convince your partner that cowgirl/cowboy is the sexiest thing you can use that as a breather. Communication is key since you're not getting tactile feedback from the dildo, you don't know exactly where it is or what it's doing unless your partner will tell you. You should always be open and use clear communication when it comes to sex stuff anyway.