I love, LOVE, my Speedy B 35!! I also have a regular Speedy 30. The 30s can hold a lot, so just imagine how much a 35 can hold!!
I have an 8 month old and we recently went to Kauai to visit my family for the weekend. I used my regular Speedy 30 because I wanted to protect my new Speedy B before I really used her, so she stayed home. Anyhow, I packed up my 30 with some essentials: wallet, phone, couple diapers, wipes, some snacks, a few small toys, and my breastfeeding cover. Man, this trip definitely made me realize how much I needed that shoulder strap!! I can't begin to tell you how many times I said to myself, "Ugh, should've brought the Speedy B!" And, on top of that, I def could've used that extra space.
Now that I'm back at home and my new little love is treated and protected, I'm so thankful for it!! Just today I had to take the car in for service with my little one. The service was quick so we were going to wait. But with a little monkey, you still need to pack up, so my Speedy B was perfect!!
I enjoy that you can wear this bag over the shoulder or as a handheld (I prefer not to use cross body). I'm hoping to later get a Speedy B 30 in DE and Empreinte; I want a collection
Also noticed that some ladies have expressed about sagging. I use a Purse to Go organizer and made a "base shaper" out of a cereal box. There's no prob with the bottom sagging, but even with my organizer, sometimes I do have the sag on the sides when I use the strap. But that's only if I carry barely anything.
I've posted this photo earlier today, but here it is again for quick reference. I'm 5'5"... Hope this all helps. IMO, the Speedy B is a great choice!!