Thanks NL for the great explanation,
Some helo models like the 520N are pretty tail heavy. If you land them facing uphill, it might fall on the tail skid once the pilot gets out of the cockpit. Or when he comes back from a nice walk in the forest.
Also, dont forget, if you are going to spend a couple hours waiting there, ask yourself if you will be confortable sitting and waiting in the helicopter.
But first of all, take your time, if you dont feel comfortable with it, take it back up. Try it differently.
Cheers,
YL