Ive been a benchmade owner/user/fan for a long time. I have knives in their 154cm, ats-34, and s30v. Ive never had any of them chip on me ever.
This is also honestly the first time ive heard anything like that about 154cm. No, its not the best steel ever but its a good one and by my experience and what i have read and heard its fairly popular.
If you are worried about the 154cm blade there are some limited editions of the:
707-701 with an s30v blade and a CF insert.
707-702 s30v and wood insert
707d2-600 d2 blade with wood insert