I've been on a hiatus for four years, and seeing a picture of this bag tonight has brought me back!

I got a first glimpse of this bag (online) about four hours ago - I've already added it to cart and just about checked it out.

Am I being too rash???
I started browsing again a few weeks ago and nothing else caught my eye. I wanted something timeless, practical, black, spacious, that can be worn crossbody and by shoulder. This 100% fits the bill, doesn't it????

Is this the bag too come back from hiatus with?
Question is - do I buy the MM i have in my cart?

Or wait/hope a PM may come back in stock? Will the MM be too big for me? (I'm 5'4", slim build for reference)