Hey Dr KevHi and welcome to the forum!
I'm not sure if the Sterling guitars have are unfinished (actually, the Music Man guitars are oil/wax finished) because they don't mention it on the website at all and the oil.wax finish would be selling a point. I'm guessing it's a satin finished, in which case it's no different to anything you've ever had before. @PeteDuBaldo can you clarify?
If it is oil and wax finished, some people do nothing, some people just wipe it clean when necessary, some do a very light sanding and oil/wax once or twice a year.
I'm not sure if the Sterling guitars have are unfinished
I just bought AX4 online, it is assymetrical neck, I believe.. but I can't get used to it.The neck on the Sterling S.U.B. AX4 I just picked up is completely raw, except for only the front of the headstock which appears to be laquer or urethane.
Surprisingly, a fantastic little guitar. It had two previous owners, and neither one of them had ever even set it up or played it. Still had the protective film on the covers and everything. Wish I could find another one.