I still keep TF2 on my mechanical drive, as it loads that fast I didnt see the point in taking up so much valuable SSD space with it.
Other programs I have on mine include MS Office and Visual Studio 2010. Whether office is worth it is debatable but VS I am glad for as it loads really fast. So do office programs, so it really depends on your patience (and avaliable SSD space)
You could try having Office on it, if you like it there and have the space, leave it there. If not uninstall and put it on your HDD.