1) the Nuclear Freedom
2) Not quite. Although I got to practice a little using the phone with my therapist at the auditory verbal therapy lessons. That's still more than what I was able to do with my HA's when my phone usage was almost nil.
Generally speaking, I've been hearing better with my CI, no question about it. For instance, sometime I could understand the speaker without looking at them. Not necessarily indulging in long conversations, but hearing simple, common few words / short sentences phrases at the cashier or at restaurants, etc. Again, that still more than what I could with the HA's, etc. And from what I've gathered your hearing can also improve over the course of time, the longer you have your CI, etc.
3) Yes, I did get dizzy after I had my CI although it was mostly just within the 1st week after I had surgery. And has had them less often the longer I had my CI, etc...