My neighbour has just had her small lawn astro-turfed and it looks fabulous. Also, of course, she no longer needs to mow it or do any other maintenance. It cost her over £300 however. If I could afford it, I'd do the same. How about you?
I guess for a small space that would be ok, but I live in the country on several acres so, expense aside, it just wouldn't be practical. I don't think my horses would like it at all