Knive's are my main hobby (and a good part of how I make a living as well!), Benchmade makes some great ones. I don't like black or serrated edges, I prefer satin finished blades with plain edges (convex if at all possible), but it's mostly a matter of personal taste. The instructor I train with carries serrated Spydercos almost exclusively.
I'm no expert when it comes to steels, but as far as I know 154CM is an improvement over 440C (which is a pretty decent steel for an EDC folder). It was developed around 1958 as a high temperature bearing material and was only available in bar stock. Crucible was the first to offer it in sheets for knife making. 154 CM is a trade mark, the actual norm of the steel is AISI 618, pretty similar to Japanese ATS 34.
I've got several folding knives with 154 CM blades, and I'm quite happy with their performance. My favourite is a Benchmade Ares I had customised with ironwood handle to replace part of that God awful G-10 (it might be tough as nails, but I like wood!).
Congratulations on your purchase!
Since we are on the knife topic, do you guys train with them? I do it mostly because I enjoy it and I need the exercise, I do three hours a week of one on one practice with an instructor. Most of it is physical fitness stuff, we do mixed martial arts, kerambit, knife and stick. Since I started to carry a gun we've worked on using my weak hand for handgun retention techniques using knives (folders with Emerson WAVE opening system work great).