I have three Tod's - but not the D Bag. I WANT the D-bag Media (medium) probably in Camel / Caramel / vachetta.
I have to say that Tods offers a better feel than LV. (I have a couple of those too, just like everybody else around here.) BUT, not all their styles are hits. I have the Carre but I don't care for it. It's hard to fit both shoulder straps on my shoulders - they are still sort of stiff - and it's just not that ....attractive. I got a good deal on it, but I sort of regret buying it. However, I have the extra large Miky and the deerskin hobo and they are both amazing. Now the hobo has that stiff strap that sits up at all times and I think it's not for everyone, but the leather is very nice. I wore that hobo today.
I recommend the medium size, also. The small is really too small imo. Unless you carry very little and don't see that changing soon.