Yeah, no question about the clarity. One thing though: The one that I own scratched just with placing live rock and scraping the side. The scratch was minor (took a few months for me to notice), but then I did it again. Of course, not as bad as acrylic, but I've not scratched "green" glass so as to see it in a filled tank, even with live rock avalanches. Just a good thing to know, for some people, maybe.