There is no straightforward answer to this question. Honeygain could be worth it and you can tell that from the fact that the service has been operating for a while now which means that there are people using it.
However, this would depend on the cost of Internet bandwidth in your location and if you would make any gain especially if the Internet connection comes with unlimited bandwidth. If you have access to unlimited or cheap bandwidth, then it is worth it. Else, you have to look for other methods to make money online.