So much fun! This was my first time DM'ing and it was great. I had a two person party of level 4 players, with two animal companions, and they were actually able to complete this in one session. Took about 4 hours not including breaks.
Loved that you don't even need maps, it made it so much better as a first time DM. Also really enjoyed the freedom it gave me with the options for sympathetic vs non-sympathetic, and the freedom it gave my players to choose where to go to collect the bones. I think they had a lot of fun.
If you can afford it, please pay the creator. They deserve the support for this awesome one-shot!