I'm a real helicopter pilot and I have just spent an hour trying to land there and didn't manage it once yet. Kudos to you that have landed it.
OK just managed to land it. The problem is there is zero space to run on so you have to get it spot on for the approach. I would never attempt such a steep approach in an R22, that is an AS350/355 helipad. A lot of fun so long as your real little body is not at risk.