the next thing you want to make sure of, is the type of files that are there. on most of the programs, you can just leave them as they are, but some can use.tar.gz or.run files, which means that they require the user to provide some files when installing. in the past, i just sent them there by accident, but i finally realized it was not such a good idea and have now made sure that all the programs are set to install stuff from the repositories.
now, it is the time to click the button install. in case you want to edit your games files, you can first do that before installing the files. when you install, you will be offered two other options as well:
yes, install recommended packages (i would not recommend installing something without knowing what it contains and it will be a mess trying to do it after some time. if you do this, you will be able to change your mind later and fix it. it is easier to get it right the first time) keep my current settings (this is the default and you do not have to do anything. you might want to uncheck things to make sure that they get disabled though)
what's next? i would say the most interesting feature is the multiple server support. you can actually change the server you have your server on. or you can have different servers running at the same time on the same computer.
the performance is quite good. not as impressive as the other full screen apps. it might be because of that quirky window manager. these dev's have only a couple of months experience with clutter. it's an interesting environment. also since clutter doesn't do any kind of performance analysis it should be quite fast, not impressive.