Hopefully that's what they give you
They do. My buddy just got it along with his friend. They get around 900 down / 850 up at their house. Even if for some reason it was a little less it wouldn't hurt. With Comcast I got 75 Mbps down / 10 Mbps up for $130 .. Now 1 Gbps for $130? Steal.
Our area isn't affected like most other populated areas where "peak" speeds suffer. Even with Comcast -- the speed is always the same.