Turntable set up- How easy is it

Czarivey,
Fluffers,
If you have the proper measuring equipment for setup, then maybe a YouTube video may be the trick. If you don't, these are the areas you will need to address, that a professional will be able to calibrate for maximum enjoyment:
Tracking force
Overhang alignment
Azimuth
VTA
Each of these items can be set with the proper accessories.
I'm just suggesting that, out of the box, it's good to have someone who has significant experience in turntable setup. I would want your enjoyment of vinyl to get off to a good, sonically enjoyable start. And, yes, as time goes by, you'll want to able to make the adjustments yourself, especially as you change cartridges, tone arm and table.
All the best....

"Tracking force
Overhang alignment
Azimuth
VTA
Each of these items can be set with the proper accessories."

pen, paper, ruler and scales?

It is not that hard, patience and no distractions however are a must. I have set up several and never had a problem.

Mounted 6k cartridges with utmost confidence. But I cannot solder for s#%t or desolder for that matter. Not even a spade without butching it up! So everyone has limits.

Have your dealer do it and ask questions as they set it up. The red flag is if the cartridge leads are not user replaceable; its all too easy to break a cartridge lead if you aren't experienced and replacing a tonearm wiring harness can be expensive.

Papermill is correct.

But, as you listen, you will find that the initial adjustments are only good approximations, and that magic happens when you get it just right. So watch the pro and ask lots of questions and have him teach you to do it. That means, try each procedure with him present. Make notes. Then, when the spirit moves you, consult your notes and make tiny adjustments in each direction and see if there is an improvement either way.

Then consult a psychiatrist specializing in audiophilia.