LifeEngineer wrote-I am worried about its size and single handed usage. (I know I want bigger screen but also portability/practicality is a concern).
I can use my Note 2 singlehandedly (I don't have large hands). Although a bit awkward at times, you get used to it.
Also, big screens are so addictive; now I want get a 6.4" Xperia Ultra (being waterproof will be esp. handy during coming winter).
Good luck.