I say it's tedious because I have installed it before. You asked who
had experience with it and for their thoughts -- and that's what I
provided. The way it "simply sits on the course below", as you say, is
indeed tedious. It's not as simple as just "sitting" on the course
below. The lip that rests over the previous piece is extremely tiny
(short) and extremely vulnerable to damage, etc. Whether or not you
caulk the joints or use the aluminum strips is up to you, just be aware
that the aluminum strips are fussy and ugly and caulking the butt
joints may not be an effective way or preventing water penetration. I
already discussed the warranty so I won't delve into that again.
Again -- hope this helps. If you prefer to go in blind and do not
appreciate the advice (which you asked for) then please carry on
without questioning my logic and/or recommendation.