Here are the pros and cons of my experiences with using a female condom:
Pros:
* Every man I have used a FC with has said it feels more like BB than a condom. The lack of a condom squeezing his cock makes it feel much more natural
* When used properly (and that is the catch), they are no more prone to failure than a condom
* They are an awesome alternative for guys who are condom shy
Cons:
* They tend to be messier. When the guy pulls out after cumming, if you aren't holding onto the outer ring, he's liable to spill spooge everywhere.
* Some positions are not as amenable with the FC. I've found CG to be particularly tricky when using an FC. Also, I had a guy ask for doggie, and he kept trying to push the FC to the side and slide his cock in around the FC thinking I wouldn't notice. Asshat!
* They are, well awkward to insert, and take more time to put on. Unlike a condom which I usually put while in the middle of a BBBJ so that there is little or no break in the festivities, FC's can't be used without interrupting the flow
Some tips for better use:
1. I use a dildo to insert the condom. I find it goes in much faster and easiler by sliding it over a dildo to insert
2. Once it is in, wait a minute or two before moving on to the hot monkey love. Giving it a minute or two to warm up to your body temperature also cuts down on the suction that makes it kind of stick to the guys cock.
3. Woody said it right. Adding some lube to the inside of the condom really increases the pleasure, and also helps make insertion smoother.