I've tried them for both AF and TTC purposes. It wasn't so bad for TTC purposes, not nearly as messy. It didn't help, of the cycles we used them, not one resulted in conception. Found it messy and leaky for AF. I bought a Divacup and used it for the first time last month. I like that MUCH better. Much cleaner to remove, and it never leaked when inserted right. TMI, probably, but after my second baby, my AF was ridiculously heavy, and this was seriously the first time I've been able to go more than 2 hours without going to the bathroom, and the first time I've gone all night. I would recommend trying them out if they intrigue you. The only downside, and for this, I would suggest ordering two, is cleaning them out when you empty them... it's not much fun standing at the sink, cleaning it out as quickly as you can while hoping you don't leak.

Hope that helps.