They can work better when one or the other has bad breath.
that is up to the person it salf some people like to do it and some dont but if it was up to me yes i think it will work better then a short relatoinship ?
out of sight, out mind.
They can be even better than conventional face to face. Why? Because.........you are likely to take more time to talk and get to know one another more intimately.
Funny you should ask that. If you find out, let me know because I really want to know.