Yes,
Unless you are cooking in which the spells don't seem to work, I would say that the spells are fairly balanced.
I am a level 19 craftsman who has been specializing in making Maple Strong boxes, iron sheets, and planed maple. The spells available at that level are great and never have any problems making the items.
Your skills (not spells) also help in making the items. Fletching skill is now 95 and most of my other skills are cathcing up with the exception of artistry which seems to be broken.
Best way to use spells is to create 3 hotbars and seperate the various spells used for each cratfing station. Works for me!
Spells also help your skills raise up so keep casting them!
Bub