Works great with propane, a bummer it is a chore to connect to natural gas. Comes with lava rock so we had to spend extra for the glass. 
Puts off good heat and flame is beautiful!
Color is not cement, looks more green. We ended up spraying it with a heat proof black to change the color. 
We had to make changes to the fire pit but for the price compared to others that look like it, it was worth a lower price and a little extra work.