Is CrazyBump a good software for making 'Normal Maps'?

So I’m working on a Humvee asset to sell it on content stores and I just finished the model, textures and I now need to add a ‘Normal Map’ to my model but I don’t know if CrazyBump is worth paying $300 for a Professional license. So is this a good normal map software? And is it worth paying $300?

Anyone know?

Thanks!

IMHO its very mediocre.
You have way better results with Bitmap2Material, or even the free online one: