I actually played on the server when this was around for a cup of tea.
I had fun with it here and there, but it felt like a slog to play on a lot of the time. I'm not really sure what it was considering there really wasn't anything that stood out to me, but that was how it went. It for some reason brings back the issue of obby being near impossible to even ENTER depending on your health at that time which is quite frankly hilarious. And as Nergal stated, the fog and lighting are terrible.
I remember liking the minigames, even if climb was pretty difficult compared to what everything is now. But I'll still be passing on this one. Just a preference