A20 or A20M?

[mty55]

Hi all,
I am new to 3D printing and considering to buy my first printer. So i have no experience with 3D printing, but have some engineering background.

I am wondering whether the A20M is already matured enough for a beginner or whether i should rather get a A20 to make it more simple?

How many people got it to work smoothly right out of the box / how long did it take to get it working fine?

Really wondering whether i should risk buying it or whether it is too complex for a newbie?
Thanks!