Well yea, we all have opinions. And that is all they are, opinions.
I don't even put much credence in the opinions of a person who owns or has a certain machine. They could have a terrible opinion because they got a lemon or were not willing to put the effort in to learn. Or they could love the machine all to death but in reality it is dog, but it does what they want.
IMHO there are two important things when purchasing a machine, accuracy/repeatability and speed. Unless you are building parts for SpaceX rockets most machines these days are sufficiently accurate/repeatable for wood working. Folks will argue back and forth about ball screw vs rack and pinion until the cows come home. Simply put, if you do not need speed then ballscrews are just fine. The pundits will start bloviating about gears, anti backlash nuts on and on. So, get the specs and figure that the machine will probably do a little better, only fools publish specs that are on the bleeding edge.
Now me? I don't buy machines. First off I like being able to easily modify mine, second I know how it works and how to fix it, third I am not locked into a compromise arrived at by a committee. And that is what retail machines are, a compromise reached by a committee. On one hand the engineers want to build a good machine, on the other hand the sales guys want a machine with every feature known to man at bargain basement prices. That is just the way it is.
Oh, and did I mention? A machine can easily be built that will perform as well or even better than many machines being sold for a lot less dollars. As far as machines go, these are simple things.
Low Profile CNC Router Vise