100hrs of prep = +80 jump from #1 official test to #3 (+140 jump from mock to #3 official)

The title kinda sums it up, my TTP Dashboard tells me I've studied for around 96 hours (add some offline hours and you should reach about 120 hours total) and in this time I've jumped from my first mock of 590 to an official of 650 and, finally, to my end result of 730.

I can confidently share that studying on the Official Guide coupled with TTP course is an amazing combo. I particularly loved the latter because it has a delightful UI and very well written lessons.
Surely, many courses around here have excellent exercises and examples, but, in my mind, what differentiates the good ones from the greatest is the ability to make you come back to study with pleasure, and TTP does that perfectly.

Whatever you end up choosing, consider giving TTP's "5 days for 1$" trial a chance.
Best of luck to all of you!