Very good quality!
I had 2 different bodies (light Swamp Ash, light Alder), the Swamp ash had super nice grain, both were not finished.
The shaping is not exactly like a Fender one, but even those differ a lot. The Neck Head on a Warmoth Strat neck is a little thicker.
Much more important the neck, here is the sound/core/heart/personalty of the guitar, i.e. this is the most important part of a bolt on guitar.
The quartersawn Neck with biggest size I ordered was beautiful, but kind of boring, dull sounding, my local guitar builder who assembled the guitar, does not like quartersawn maple.
So I changed the neck (a piece of wood which gave a resonant tone when you knocked on wood, holding it with the other hand lightly).
This neck/guitar sounds beautiful, makes a perfect guitar, very fast attack, lively, no muddiness on bass strings, quite even sound on every string/fret .
So concerning the neck, it is absolutely not about brand, optics or bla blah blah, it is about the actual wood resonance which differs always a lot. My advice get a warmoth body and let a local guitar builder build the neck from a wood he/you chooses carefully; makes much more sense, he can also sculpture the neck til it fits your hand.
A very heavy body makes the guitar non-lively and adds sustain, which is overrated playing e-guitar. Very often! the rosewood board is applied too thick, making it brittle and taming the guitar in a bad way.
If vibrato, get a vintage one with bent saddles, this has twang =>personality!
Another experience of mine Swamp Ash Body and Brazilian Rosewood Board do not fit together sounding wise, better with maple neck.
As mentioned the quality of warmoth is very good, but putting the parts together will not get the optimum, you have to get the frets professionally leveled, otherwise you will sacrifice playability.
Kai