All, checking for those who have purchased how it affects your rear visibility. Site looks good. Product looks excellent. Nice to read the installation instructions and views who have already installed - looks straight forward. Just interested in how much visibility you lose. It appears to come down from the top to just above the back headrests. Which if filled (and maybe even if not, with the metal frame) appears to leave a pretty small 'window' from which to see out the back. Is a judgement question so appreciate any perspective from you all early users! thanks!