I'm not an expert, but from what I've read of the docs of both projects I understanding DRF is more modular and easier to customize with its Serializer, Parser,

I'm not an expert, but from what I've read of the docs of both projects I understanding DRF is more modular and easier to customize with its Serializer, Parser, View, Viewset, etc. classes than Tastypie with its monolithic Resource class.