Ask HN: Any current CLEAR 4G WiMAX users out there willing to offer reviews?

I am looking to purchase a plan in Houston, Texas which according to CLEAR has great coverage (very likely), however, I am still curious about the following:

+ speed and stability of the connection (are folks really seeing the 6 mb/s download speed they advertise?)

+ presence of filters, bandwidth throttling, etc.

+ ease of setup

+ true cost of ownership

Also if anyone has terminated their two year contract early ... was it easy? unbelievably painful?