Upgraded from Note 2 to 4, got it last night. Awesome screen, very quick (both the phone itself and the LTE). I had a capdase rubbery protector for the Note 2, made it a little bulkier but saved it plenty times. I love the look and feel of the Note 4 but I know I'm going to drop it at some point, wouldn't mind something similar.
Going to buy some apps for once (only used free stuff on the 2). I'm in no way a heavy or even very clued-up user, so going to comb this thread until I know everything
Not sure which is the best Internet app - I used Opera Mini and it was adequate - was slower than Chrome and the built-in one, but seemed to use less data (which is a big deal; only got 1GB data and infrequent access to wifi)...