I also had the S4... It went swimming in a working day... I was not too happy about the phone... Given its specs I expected a lot more "woaooow factor"I had a 6" Chinese phone (Star Hd9000+) and after that I decided to buy a Samsung S4. Ok, technically the S4 has a better hardware but I was a bit disapointed about the S4. Much more expensive and not that far away from the Hd9000+.
And yes, I would like to have a Note 4 but it's 640€ here in Germany. Too expensive for what you get.