I did Griots several years ago in our previous house, and it held up great for four years, until we sold it. It's your basic acid etch prep, but you put the epoxy down when the floor is still damp. I don't remember how much I paid, but it did cover what they said it would. The only downside is lack of colours available. They did add a new colour, but white would have problems over time, or so it would seem.
All in all if you like their colors, I would recommend it as very durable.