That's awesome I have that same style MacBook but it's the mid 2009 (last pre unibody) with the NVIDIA graphics not the X3100 Intel. I use it as my main computer. I created every single game I've made on itch.io was created on it. I'm currently using it on and off for a course I'm doing via correspondence. Has windows 7 and Mac os 10.11.
I had a G4 PowerBook and Early 06 Intel core duo iMac before this and prior to that a G5 iMac.