Putting that much filament through a machine definitely makes you qualified to comment on them, imo! I too bought a kit to get started, a Tevo Tarantula. There were a couple of reasons, price (assembled units were pretty expensive back then) and I figured it was the best way to learn about 3D printing. Getting it running properly was a long process and it still requires the occasional bit of tinkering. I changed the software, added an additional Z axis drive plus a few other mods. There are obviously much better machines around now but for my simple needs it's adequate.
These days there's not much point in buying a kit, however, as the printers have become more affordable, and simple plug-and-play has a lot going for it!
I also considered getting a resin printer as the final finish is very good but they appear to be limited in the print size they can do. For someone who makes smallish model figures they would be excellent, but not so much for my needs.