Transcenders compared to 70-293

I'm using Trascenders to prepare for 70-293. I've read they are tougher than the real exam, but can anyone give me an idea how much tougher we are talking about? I feel I have a good grasp on IPSEC and PKI (my two weakest areas), but some of these Transcender questions make my head spin with the amount of detail they get into.
Comments
I miss the old NT4 MCSE days when the Transcenders were almost word-for-word the same as the actual Microsoft exam.