Here's a neat 5+ minutes you'll never get back with some relatively good footage of the airport and a rather smacky landing with a Baron.
Landing in a jet
must be a bit more interesting but its not like people with absolutely no skills go into these fields. I wouldn't be so worried about T/O but coming up to this with 110-120 IAS must be a bit gooey on the nerves, especially if you're a pilot and in the right seat. I know 85-90 in a Mooney with a calm guy at the controls looks like:
wrong place, wrong time.
Any bit of turbulence and wind and you wish you had listened to grandma, who wanted you to stay home and help do dishes, or feed the birds, or something.
The only reason to land early is that the gradient will require you to climb on landing, which with normally aspirated airplanes can be a bit .... well.... maybe not.
You might wish to have plenty of power set right after touchdown, otherwise the hill might get hard to master. It goes all
WHEE!!! downhill, and you're best advised not to let the airplane fly when it thinks it wants to gracefully jump into the air just a tad bit early.
Courchevel is pretty civil, but there's fields that will make you want to climb really fast right after takeoff and your instructor will use whatever it takes to keep you aware of your speed and lack of residual power. My CFI (family member with decades as instructor) kept tapping the airspeed indicator with a pencil. Highly annoying, but the reflex is to go away from what you see. Ever flown with a student who's done landing 14.2 feet over the runway? Same reflex at work and it hits you even though you've flown for many many years and know better.
We landed on fields that required full power to land uphill and that power would be pretty much set until its time to stop the plane.
Quite a few people have taken this stuff too literal and smacked some nice equipment up pretty badly. They've got everything to recover a broken plane right there.
Not a cheap forced vacation spot.
Get good instruction from someone with lots of experience before going in solo. Some altiports do require endorsements and not all altiports "used" should be... haha.
Lots of granite and false horizons can make for some nasty "Whoops!" moments that may not buff out if taken to conclusion.