I would say it's not very trendy right now, but it's a stylish and classic bag. I sold my like new Mono Speedy B 30 b/c I never wanted to carry it. However, I have a Multicolore Speedy in Noir and I love that one. It all depends on your style and want YOU want carry.
It's not a flattering style, as it sits wide against the body.
Audrey Hepburn was rake thin so it always looked good on her.
The Alma is a much more flattering style and sits flush against the bod and holds its shape when using a shoulder strap.
Speedy is more casual.
I'm tall and slim and I don't have the Speedy but thinking about it.
I like the slim size more (is it the Papillon? But it's discontinued).