the totally is a perfect EVERYDAY bag! easy access pockets on the outside, easy to wear handles, light weight and lots of room evening in the PM/mm I would opt for the mm if I was going to use it everyday. Plus it has a secure closure.
Neverfull MM is a nice size, light weight... I think of it more as a travel tote, beach/pool bag. I think its ok if you dont mind the open top. Personally if I wa using for an everyday bag I would have a PTG inside that I could put my wallet/keys and other valuables in ..
When it comes to totes, I always go for ones that you can just throw on your shoulder with one arm. Because the NF opening is much smaller than the totally, you'd have to put it on your shoulder with your other arm. Personally this annoys me. With the totally you can just throw it on your shoulder and go.
I love my Totally! It is a perfect everyday, classic tote. The straps are so comfortable, and the zipper is a plus. I also like that there is not a ton of vachetta to worry about. Just handles, tabs, and piping). Good luck deciding!