I didn't mean to come off too hard. But (Not knowing the level of tech savvy) I would rather error on the side of caution.
Even with a solid kit like a true Prusa if you don't consider yourself a tad on the geeky side it is a lot to comprehend.
Maybe not at first and if you just want to take pre-sliced models and print, but pretty soon something (like bed adhesion) is going to come up and as you said, there can be a myriad of reasons why... Some days you get lucky and some times you are chasing gremlins for days/weeks (the troubles with the Mk3 extrusion is a prime example.) I would rather just be upfront and say it's not plug and play.
I'm sure you can agree that even after assembly there are many different slicers and settings and even filament choices that are going to come into play. While help is out there, some people tend to be pretty specific and opinionated and their solution might not work for everyone. Which is why I was vague about filament choices (I will
NEVER buy another roll of Makers Geek for example and some people love it...) Insanity, if you want specific brands that have worked for me, I would be happy to get more specific (just ask.)
Just a couple months ago I gave up on Cura and now have Simplify3D. It works for me and while I "might" recommend it for a new user, it comes with a $150 price tag and insanity indicated he's on a budget (which BTW I totally get, my better half has me on a budget now for my "toys"... something about a $2k laser cutter... I don't know...

) So, one of the free options (Prusa comes with a tailored version of Cura, correct?) is going to work fine for them for now.
I started out with 3D printers... maybe 5 years ago... (Jeese, was it THAT long ago) I started with a pretty nice i3 clone (Lead screws not threaded rod) bought a used MendalMax 2 on Ebay, modded the heck out of that. Then have build (and modded) several Wilson 2s from scratch (my core XY is on the sidelines) and I am
still learning something about the darn things almost everyday.
So, that's why I said what I did... I hope you understand now.
If you want to check out some of my designs you can find me on Thingiverse;
https://www.thingiverse.com/kilroy07/designs
By tomorrow I'll have my SQ12/noodle bomb drop mount AND my $10 foam glider power pod (just had it's maiden today!) posted.