I didn't find the circuit question as hard as everyone was making it out to be, (except for the number of possible combinations, I didn't have time to run through them all).
I do agree with section 3 being considerably harder than what was expected, some of the patters were relatively simple to find the pattern, others made no sense whatsoever. Section 1 and 2 (bar a handful of questions) were roughly what I expected, some hard, some easy, some in between.
Time was a big constraint though, I ended up making educated guesses (narrowing it down to a 1/2 or a 1/3 chance) for about 15-20 questions, but we'll see how we all go soon!
I tried my absolute hardest, if I do well, then it's meant to be; if I do bad, then there's always other pathways to get in!