There is definitely a learning curve with 3D printers, besides whatever modeling software you decide to use.
I've recently purchased a printer myself and had some FUN!
just getting all my slicer settings right and getting the thing to print in the first place...
Lots of hours spent on you tube learning the practice... and I'm still in need of upgrading a few things on my printer just to get the first layer to stick properly, but I have managed to make a few neat practice pieces.
I can't speak for everyone else, but as for my 2 cents... Don't expect it to be a plug-N-print experience as you would with a regular paper printer... Actually the word "PRINTER" is a little miss-guided if you ask me. These machines are in fact CNC extrudes.... G-Code and all... So there will be a bit of a learning curve.
And they are super slow! But lots of fun