I was a dedicated Yuengling/Miller Lite drinker. . .
I got started on a Mr Beer kit that my buddy had and was no longer using so he gave to me along with the kits he had left. My wife then got me a 4 pack for Christmas. Enter life. . . :lol: When I finally got to trying it one full year later, of course the yeast was bad and the beer turned out baaaaaaaaad. I was a bit disappointed. I then found the mrbeer website and browsed their kits and ordered a few new ones to give it another shot. I made 6 or 7 batches with it and was enjoying the process. I would say I ended up around 50% on MrBeer brews, some were utter crap, some were decent. The Shocktoberfest in particular was delicious and sold me 100% on homebrewing after my first sip.
My wife’s cousin brought some of his homebrew to Christmas this year and we struck up a conversation. He got a brewers best kit as a wedding present and encouraged me to look more into homebrewing. Through internet browsing/research, I found this site and got the deluxe 5 gallon starter kit. I have since continued to research and learn as much as I possibly can about this hobby and with my 4th extract kit arriving in the mail shortly (Denny’s Wry Smile), I am focusing on improving my process as I continue to try to convince the wife that All Grain is a reasonable goal long term. The mad scientist in me is just dying to experiment but I want to make sure I have a good handle on the basics before I really dive in to that. 
I have also been lucky enough to inherit some gear upgrades from my uncle (namely turkey fryer setup with a 40qt pot) who tried it once after he retired and decided it was too much work so I’ve now upgraded to full 5 gallon boils outside and have great plans for continuing to improve my setup as I go.
All in all, I would say that the NB beer kits are immensely better than the MrBeer kits, but without the MrBeer introduction to brewing, I may not have gotten hooked as easily in the first place and I would have continued to think that brewing was something I could never do by myself.
As an aside, the main thing that has significantly increased my appreciation for good beer is the Untappd app because I am now constantly in search of new beers to try and learn about. 
:cheers:
Rad