I decided to get her the S20 steel instead of M4. While most of the surface is cerakoted, how is the M4 edge holding up in terms of corrosion? Do you need to oil it routinely or is the corrosion susceptibility overblown on the interwebs?
ETA: You might appreciate this. I ordered it from Benchmade due to an emotional attachment I have for them. A buddy of mine from the Corps had a friend KIA while he was with 2nd MSOB, and the only thing he could recover from his body was his charred Kabar. The company that makes Kabars never responded to emails inquiring about getting it refurbished. Spyderco answered back with a "sorry, just not in our wheelhouse but here is a refinishing kit and leather for free, godspeed".
Benchmade? Not even their knife. Benchmade took it, completely refurbed it, and mounted it on a plaque....all at no cost...and gave it back to be presented to the son of the Marine who was KIA.
Don't know about you, but shit like that makes a mark and counts with me, hence why my most recent purchases were with Benchmade and Pro-Tech.