Received the BB8320 two weeks ago from 3mobile. First appearances it's small. I am 6' 1 and it's small. Nevertheless I insisted on a keyboard. Being "big" screen keyboards are a no no. The ergonomics are fine. 1 weak point is the switch on for the camera. The button is extremely easily pushed when taking the BB from your pocket. Speed is no problem to me. I'm retired my world goes at whatever speed comes.
Guard 1 point you are shafted by BBM. I have no use for this service and tried to cancel this part of the Contract as I was advised could do. I was then told that if I cancel my emails, Web downloads etc. DAW! The phone suits me I am however a small niche.