I guess the lesson here is that everyone is different. Most mice seem light and flimsy to me. I haven't used the Mamba but being able to load the R.A.T up with weights was a big plus for me
About 6-7 hours continuous, time flies so it doesn't feel anything like it and I end up having to plug in.How much would you get out of it? Another plus for my RAT 9 is that it comes with a second battery so you can change them on the fly if you see the battery indicator flashing.