I've checked several times during the last month, using various tools including the one provided by Verizon: http://speedtest.verizon.com/fios300/#
My connection speed is often extremely slow, while my account is supposed to be 150 Mbps/65 Mbps, the experience sucks (YouTube, Netflix, Hulu, etc. buffers a lot), even sites are often slow to load. The Verizon tool shows 40-65 Mbps Download and 7-40 Mbps Upload!
Here's an screen shot of a recent test:
