I don't know if "years of experience" is a very accurate way of determining "skill level"
Some "first quilts" are truly awesome - and some quilts made by people with "years of experience" still look like they have "room for improvement"
Some of us are very unadventurous in what we do - some of us have physical limitations that impair what we do with what we want to do - some of us are limited to what we have available to work with
I think the guidelines should be: type, style, size
I've seen "simple" quilts that I loved - I've seen quilts that I know were very complicated to put together - and while I respected the work that went into making them - I did not particularly like them very much.