Bluetooth receivers

I am considering a bluetooth receiver, either a Musical Fidelity V90-BLU or Audioengine B1. Any thoughts on these units? I am going to use it primarily for internet radio and Spotify free. At this point I do not have a stand alone DAC nor am I in the market for one. It is my understanding both of these units have a DAC in them which would need to be good enough for now. Maybe I will invest in a better DAC in the future.