BB user here as well. I went to the Note7 from a Passport. I am now looking at the S7E as well. I miss my Z10 and BB10 so bad.
I started out by carrying both devices for about a week maybe more. I'm still trying to get used to not swiping and having direct access to my HUB. I have Hub+ on my Note7, but it is nowhere near the same experience. Functionality is there, but ease of use and always available is not there. Using HUB+ is not like HUB on BB10 because while your accounts are in the aggregated app, they are not on the device. What I mean is, if you set up all of your email accounts in HUB+ and you accidentally delete it or have to switch devices, you lose the accounts. And you'll have to set them all up from scratch again. In my case, it is very frustrating. Also, you get duplicate notifications, from HUB+ and from wherever else the account is setup (Gmail app, Samsung Email app), and again, it's frustrating. I have not setup any accounts other than my gmail account, and then all other accounts have been added to HUB+ only. Not I have to go back and set them up individually on my next device. It's annoying to have to transfer my notification sounds into the root directory and look for the ringtone and notification folders.
All that said, I did like the edge features, even if it was on a Note. I wish there were more things available for edge features, like better sports and weather options. more edge notification options, everything seems to only come through Yahoo (yahoo news, yahoo sports). I wish we have the ability to customize the edge notification colors lengths and patterns out of the box. I think there are apps you can download for that.
That's all I can think of that might help you. Good luck!