The main trail is red, black is all optional. Some of the red is tricky despite what the internets warriors like to say. There are a number of short sections on the red that often cause people to stop and think.
Staircase on Homebaked has a lot of people walking, less so since we built the bypass (at least 50% of riders won't ride it). Log ride is tricky in places even ignoring the logs, the two little bridges require a bit of strength and balance or you'll end up face down in the ditches. The climb through the quarry needs strength and balance (don't try with black ice), there's a lot of boardwalk in places that phases people, the large slabs end to end through Simon's swap are again a test of line choice and balance. Hully Gully catches lots of people out. Swoopy has it's moments although the black drop isn't a drop, just a steep off camber slope with a nasty berm at the bottom.
To the OP there's plenty of challenges but very little will catch you out at speed around a blind corner. The Staircase and the black drop on Swoopy are probably the only things you'll not notice until it's too late, both have alternate lines.
The unofficial DH stuff below the leap of faith has been closed as of yesterday after an official FC inspection found many of the jumps to be dangerous (from a construction point of view rather than riding).