Have you looked over the installation paperwork? You must understand the expansion spacing and caulking instructions.....Unless you are an octopus, you will not be doing it alone, just too flexible....and heavy. No matter what they tell you, you should plan on finding the existing frame layout and try to hit studs where possible. All that glitters isn't necessarily gold. Special blades and cutting tools required to do it right. I don't feel that it is for 'happy homeowners', you need your head screwed on correctly do have a good job. If you are an 'up=close' guy, you may not like the look of it. I can't see it from here, so it is not my issue. Check out a few jobs in your area before you commit. If possible, look over a few that have been installed for a few years.