My experience on Chnlove was exactly the same as the other one star reviews on this site -- correspond with a girl for a long time, then say you're going to get a visa and travel to China, and then suddenly there is a reason for you not to come. There's always a reason. I did get a couple of girls on this site to write me directly by personal email, but after one or two exchanges I heard no more. The chnlove site seems to be about suckering guys into paying them money to write to girls that don't exist.
Notice that Chnlove has replicated their business model across several sites, including Charmdate.com, iDateAsia.com, and LatAmDate.com. Their main competition seems to be AsianDate.com, which has also replicated their business model and runs AnastasiaDate.com, AmoLatina.com, and ArabianDate.com. I once got a girl talking on AsianDate.com and she admitted straight up that she got paid for chatting online. If you pay for these chatting services, it's damned expensive because a cut goes to the girl and a bigger cut goes to the site.
Given the proliferation of these sites, one can only conclude that it's very profitable and that there are many men who are willing to pay. If you can regard this as exclusively of entertainment value, you'll be OK, although you'll also be poor. If you allow yourself to believe that any of this is real, you might get hurt. So beware. Caveat emptor. You have been warned.
If it weren't for a steady stream of planted rave reviews, everyone would be warned away, so I would like to encourage everyone reading this to post their real experiences so there will be plenty of counterbalancing testimony.