Surface RT-Right for Me?

So I've been looking at the surface rt for a while now and I am still wondering if this thing can do the things I want it to do as smooth as possible (which isn't much)

Here are some things I plan to do:

Listen to music on Xbox Music (streaming and downloading music onto WP8)

Play games (angry birds, etc.)

Work on school projects like on Word, PowerPoint

and of course browse the web.

These are all simple things, but I am curious how well they run on the surface rt. I read some reviews and some say games and music can be laggy and take for ever to start up.

Thank you!