I guess it's an OK deal, but I wouldn't buy it personally because these early C2D Macbooks can feel quite sluggish. Also, they only allow up to OS X Lion to be installed, so you might run into compatibility issues with some later software.
If you are looking for a C2D Macbook, I would personally only look at unibody machines (the white 2009-2010 models, or the silver ones). They have much better graphics, and also can run the latest OS X El Capitan.