It depend on what you're using it for. If what to be able to read lips when talking to your family and friends it will be OK. If you want to try and lips reading with people you do not know it could made some people very comfortable. I was a boarding school and we had an exchange student from Iran I had trouble understanding her and tried to lips reading and she thought I did not like her as I was looking at face the whole time. I did not know it was consider rude to look at her face when talking to her. It's not easy to read lips for too long , some people get headaches or very tried trying to read lips for long time. I will read people lips when they're too far away to hear them but I can still see their face. And some people are just impossible to read, they mumble , or have move around too much etc. To answer your question , I think you should save your money and tell people to talk a little slower so you try to read their lips.