its not a big deal. i put an anderson in a few years ago with one guy helping. they are quite heavy. the directions that came with it were very easy to follow and it came out perfect. that said, i'm thinking $527 ain't getting you much of a slider. my anderson was twice that and is superb.
An Andersen is the ONLY slider worth fooling with. If you can't afford one of those, I'd go back with a simple patio(fixed glass section with a in or outswing door). If you've never installed a door unit, this IS NOT the one to learn on.
