Summary: Good for the price. They were very muddy in the rear doors of my Jetta, so I moved them to the front doors and they sound OK there. May work fine for other vehicles.
Pros: Fairly balanced sound for a cheapy. Happy that it had the hybrid fabric surround. Handles enough power for the factory head unit. Two-way with coaxial tweeter is not the smoothest, but its nearly as good as the factory speakers before they blew out.
Cons: Shipped with wimpy adapters and 'harness' connector that did not power the satellite tweeter. If you do not need those componenets, these are perfectly good inexpensive speakers.