I currently have an XR30 G3 over my pool 70 and the new G4 with HEI lens should have a much better spread. I also have an XR15 G4 over my frag tank and you can really see the difference in the additional colors that come with the G4 in comparison to the G3. I would love to have the matching light for my display!
Have always liked the look, but have been puzzled by the rate of which people replace or upgrade, looks like the G4 has got to the point that folks will be satisfied, and enjoy their purchase for years to come, hard to upgrade perfection!