Photograv

I laser engrave photos without the benefit of Photograv.  I've read alot of hype but haven't been any place to see a comparison of what it can do.  Between Corel Photo-paint and the Corel Painter Essentials II I got with my tablet, I am turning out some pretty nice stuff.  Since Photograv didn't come with the business I bought, I have thought about it but the price is pretty high for a gamble.  I would like to hear from others as to the pros and cons of Photograv.  Any comments?

 Cec