I used to go to there to find files I need. I love it. That's not bad. Very easy. Just type the name of files you wan to search and hit enter. So many options in the result. Just choose and click. That's all!
But .. unfortunately, if you get passworded rar/zip files, you can't easily open it. But, nothing to worry. Outside there you can find rar password breaker software :)
Over all.. the site is great and very useful. The points of using RSE are choose, choose and click. :)
You should also trying this sites to search files.
Happy searching ...