If you can still take your Galaxy Note back, I suggest you do it. I have one, and I very much regret the waste of $600. Read some of the other threads on here. You will see that the phone is very high maintenace. If it is OK that your phone hangs, or does not work about 20% of the time, then you are OK.
That is just my opionion based on four months expereince, and the exepiernce of my freinds.