We shopped around to 4 places for estimates. Costa was the only one to get it right! They same onsite to estimate it, had examples of edging to show us, had a clear breakdown of costs in the estimate.
They were not the lowest bid, but they were the best.
They came back out to double check the math before cutting the slab!
Install was handled on the day they promised, quality was exactly as advertised. they will be my first call on the next project.