starphirre is totally worth it!ive got all sides done and the clarity and true color rendition is absolutely brilliant!heres how you can tell how clear starphirre glass is:go to the end cut on one of the glass panels on standard glass and try to look through it to the other end of the panel,you can barely see 1/32" in to it.go to the same place and look through starphirre glass and you will see all the way through to the other side.ask BigAl07 about that,i showed him that little experiment on my tank when he came for a visit.he looked through the end of my 48" front panel and saw my hand clearly waving at the other end.its so clear that you can read words through the end cut.keep in mind that "starphirre"is just a brand name of low iron glass and different companies are gonna use varying degrees of low iron glass.the lower the iron content,the clearer the glass.im so happy with my tanks glass,it was a work of art even without water in it and Al will attest to that.