Yeah, seriously. Any 3DP that isn't based on al extrusion or metal plates/angles is eventually going to become a lack-of-rigidity clusterfuck in short order, requiring periodic, in some cases frequent realignment of the chassis. A great many of those that ARE made of metal will become such a clusterfuck very quickly, because the manufacturer tries to get away with the fewest number of cuts and doesn't properly design so the frame self-aligns into a properly rigid collection of planes.
The CReality Ender product line teeters on the edge of that balance; they
are pretty much the bottom of the barrel for anything really useful. As Monkeh said;
the software is free (in the *NIX flavor of the word; you pay for it by investing your time learning a new language) so really nothing useful there.
The uber-cheap kits all try to leverage some warehouse score of weird non-standard hardware (steppers, long-ago abandoned hotend parts, sliders, rollers etc) or injection-molded ABS with precision faults that are visible to the naked eye, and almost never have a heated bed, so
*blerk*...
nothing useful there for the building of a decent 3DP. It's just money pissed away on junk that will take up space in the
Tinkerer's Cupboard of Doom ( we all have one) until our kids have to haul it off to the dumpster when we die.
TL/DR: They all exist pretty much to suck money out of the pockets of clueless noobs hoping to get a start in 3DP for cheap. Arguably, CReality is ALSO of that ilk... for sure so are most of their clones.
When you get into that price bracket, everything is a tradeoff... a better
part A costs a dollar or three more, which WILL come out of the finished product in the form of a cheaper
part B somewhere else. you need to be more knowledgeable than the typical noob to be able to choose those tradeoffs in a sane & productive fashion.
I learned those lessons the hard way with my Tevo Tarantulas... I would never EVER recommend one of them as a first printer for anyone.
Due to the huge customer support base, I really can only recommend something like the E3/E3 Pro right now
for someone wanting to get into 3DP on the cheap, and after seeing HobGoblyn's adventures with his, I further recommend ONLY from a store on Amazon where you have a reasonable right of refusal if your particular unit turns out to be a shitshow.
If you have more money to spend, there are a world of options out there... but as I'm the original cheap-ass dwagon, I only have first-hand experience of those by helping others fix theirs, so I'm not a good person to ask, as I will tend to be a bit prejudiced based on HAVING TO help people fix theirs.
As I still haven't received MY CR6-SE, despite being one of the very firstest KS backers, I really can't recommend for or against... and by the time I DO get mine, pretty much everybody who knows anything about 3DP will have had a chance to dissect them in microscopic detail, and my opinion is already tainted by the whole thing.
Right now, if you can get one off Amazon for the roughly USD$180 I paid for mine, I can definitely still recommend the Diggro Alpha-3/Longer LK4 Pro. The fact of getting it from AMAZON for that price with touchscreen UI was the only reason I took a gamble on mine; IMO it was a gamble that paid off.
mnem