Hello
I passed an hour ago and I thought I should share my experience, especially since you'll have been helpful the past few months.
Background: Background? Don't really have one. My undergrad was in Global Affairs, I'm 25 years old, I don't really have any other certs besides A+ and CCSK (basic cloud) and I only have 1 year and 10 months working in the IT field (Intel Security). As you may have guessed, I have to wait a few years for my endorsement.
Study materials:
1: 
CISSP (ISC)2 Certified Information Systems Security Professional Official Study Guide: Edition 7 (
Sybex)
2: Cybrary videos
3: CBT Nuggets
3: CCCure practice exam
-I had less than 4 hours of sleep last night so excuse the typos.
I spent about 3 hours every weekday after work and the entire weekend for the past 3 months studying. Almost everything I used as my study materials was useless. I would say 80% percent of what I studied from the Sybex book or learnt from Cybrary videos wasn't in the exam. I basically read the Sybex book twice if not more and watched the Cybrary series, re-watched certain sections multiple times. I practically outlined the book, and took detailed notes on each chapter. Did all the chapter quizzes and took one of the Sybex online exam where I think I got around 74%. Here is my CCCure scores:
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20
70%
CISSP 2015
Pro
Test
00:15:47
08-May-2016 05:45:32 pm
Complete
Review Quiz
20
70%
CISSP 2015
Pro
Test
00:20:31
08-May-2016 05:11:12 pm
Complete
Review Quiz
20
75%
CISSP 2015
Pro
Test
00:19:40
07-May-2016 05:15:51 pm
Complete
Review Quiz
20
85%
CISSP 2015
Pro
Test
00:19:15
07-May-2016 04:49:02 pm
Complete
Review Quiz
20
0%
CISSP 2015
Pro
Test
00:00:00
06-May-2016 11:51:33 pm
In Complete
Change quiz status
20
80%
CISSP 2015
Pro
Test
00:17:36
05-May-2016 08:15:43 pm
Complete
Review Quiz
20
85%
CISSP 2015
Pro
Test
00:09:40
05-May-2016 07:46:28 pm
Complete
Review Quiz
20
65%
CISSP 2015
Pro
Test
00:16:16
05-May-2016 07:06:17 pm
Complete
Review Quiz
250
75%
CISSP 2015
Pro
Test
04:18:00
04-May-2016 06:21:02 pm
Complete
Review Quiz
25
76%
CISSP 2015
Pro
Test
00:31:20
02-May-2016 09:33:40 pm
Complete
Review Quiz
25
96%
CISSP 2015
Pro
Test
00:26:32
02-May-2016 08:31:43 pm
Complete
Review Quiz
50
70%
CISSP 2015
Pro
Test
01:04:28
02-May-2016 07:54:36 pm
Complete
Review Quiz
20
100%
CISSP 2015
Pro
Test
00:15:32
01-May-2016 09:34:27 pm
Complete
Review Quiz
10
100%
CISSP 2015
Pro
Test
00:07:22
01-May-2016 09:16:06 pm
Complete
Review Quiz
10
90%
CISSP 2015
Hard
Test
00:06:48
01-May-2016 09:04:22 pm
Complete
Review Quiz
Exam
I only got about 20 easy questions where I learnt from Cybrary or Sybex. Some of the ares my exam focused on were VPN, Software Development, Federated Identity, Networking, Encryption, a lot of scenario questions, and little bit of everything else. For the amount of time I spent studying for it, I was expecting it to be a little easier but every question was a battle. Even simple questions were complicated even though I knew exactly what the question was referring to. Here is a fictitious example, a simple antivirus question was worded so awkwardly that even you AV expert you still be confused. There were parts of the exam that experience was necessary which I understand but most of it was a word game. I'm sure you guys can since my frustration but honestly it didn't need to that convoluted. Maybe my exam was one of those hard ones..
Advice
At around the 70th question I started to get the feel of the exam. By "feel" I mean looking at the questions in a high level way, holistic way. Most of the time you will have two wrong answers and two right answers, by two right I mean they both can certainly be the answer. Once you start getting the "feel" of the exam, you can pick an answer between the two. That how my exam went, I chose the one that felt right. That being said, the study materials I used didn't particularly help me with a definite answer but it did help with the "feel" and I think that's important. So everything you you study, books, videos and practice exams won't help you much but it sill. 

 Like everything else in life, the closer you get to the truth the more paradoxical it becomes. 

In conclusion I thought the exam was unnecessarily convoluted and seemed like an English/IT exam. Quite honestly, I used three different sources to study for this exam and I spent countless hours studying yet there were a lot of question that i'd never seen. Here is a shortcut: Watch the Cybrary series twice along with CBT nuggets videos and take good notes. This will give you some of the answers and most importantly the "feel".