I am biased by having one of these - so I might be slightly too "glowing" about the N2 but I really have found that it can do almost anything.
I have an N2+, so the build volume is huge.
Its a big machine... At least the N2+ is
Bed leveling is a bit of a chore but really only a "do once" task.
Factory extruder is a little heavy, gets lots of horrible reviews BUT see the related PRO... I never had any issues with mine
Its a BIG machine - totally enclosed except when printing PLA - prop open the top or take it off for PLA
The mechanics are really quite solid - of course you could build a better machine but then the price would go up too - its really a solid performer out of the box.
You CAN upgrade various parts if you find a need - From alternate hot ends and extruders to using upgraded stepper chips, third part slicing software, g-code etc.
It all works out of the box - but it isn't so closed a system that you can't find custom solutions for any issue you might have.
I like to print Nylon and CF nylon or CF PETG - it does all of those quite well.
I have run 0.2mm nozzles at 0.05 layer height and gotten great detail
I've also run 1.0mm nozzles with a layer height of 0.4mm and built huge parts really fast - it can do what you need when you need it.
I would call it a "semi-open" system, as the controller can be flashed to alternate (not factory) configurations but the provided software, touch screen and IdeaMaker software all integrate so well, I stopped using other slicers and just use theirs.
Tech support and the on line community are responsive and knowledgable - no regrets!
I switched to a Bondtech Dual Direct extruder because I found one really cheep used - For standard filaments, it doesn't seem to be much different from the factory extruder - maybe for really soft filament or poor quality filament that isn't consistently round, the spring loaded drive would be an advantage, but I never had trouble with the factory system - adjusted it once and was good to go.