Update - I returned this bag. I decided that while I like this, there is something else I like more and I'd want to have the funds when it suddenly pops up. Actually, this is very much like what bunnycat said.
I also did the other suggestions, filled it up with stuff I usually bring, walked around with it...decided, well, I like it lol but basically if I was thinking of reasons not to like it, then maybe I don't need it in my life. I got it on sale so there's that. That made it extra difficult.
Anyway, so I called DHL, arranged for pickup, and lo and behold - around 15 mins later, the DHL guy arrived. So no changing minds allowed!

Interestingly enough, once I gave it to DHL, I did not really feel bad or anything and didn't miss it. So I guess I don't love it. And my goal moving forward is to only keep things (and people

) who fill my heart with joy.