Ettercap

Has anyone tried using ettercap? If so is it any good? I have been trying to use it on my older laptop which has WindowsXP on it and I can’t seem to get it working right. I know that a lot of people say how great it is, but I have yet to get it to work properly. I have used wireshark in the past, but you really need a hundred page manual to use it, but I have heard that ettercap is better. Any advice would be great.

Thanks