No there is probably a reason why Altium training material is commonly found in Chinese and people charge almost as much as the great package itself to teach, personally, I just got stuck into it and with in a week or so I was quite happy using it.
Yeah it's good, of course it is, so is Cadence, and yes it is expensive, most people doing hobby type designs will not use 1/100th of it's capabilities, so I never recommend it to anyone personally because if they NEED it the company who employs them will pay for it, if you have to pay for it yourself (and you don't work for yourself) then chances are you don't NEED it, it might be nice to have, but so is a Ferrari, most of us can't afford one of those either for pottering around town!
I have 100% confidence that I can do what I need to in Altium, Proteus, EAGLE, DipTrace, CadStar, Ranger (
), RS Design Spark, Mouser /NI MultiSIM and KiCAD, as those are the packages i've trialled / used, for work stuff, it doesn't matter, most of us are limited to what they have purchased at said place of employment, for personal / home stuff, I use KiCAD, I have used EAGLE previous to switching to KiCAD.