It is not best phone.
Home button Disadvantage at SAMSUNG GALAXY NOTE 3 which use hard button key, not like the other brand who already try to use soft button for all Home & Back & Menu button. Using hard button key will make use feel not so comfortable because it will have maximum keypress before problem although the time will almost the same with unlimited time.
Battery Capacity Disadvantage at SAMSUNG GALAXY NOTE 3 because it have only 3200mAh battery, if we use this smartphone with full screen brightness and internet access will need recharger before one working day usage. But do not worry, we still can have more time if you adjust the brightness into middle bright and use internet as we need.
MicroUSB port Disadvantage at SAMSUNG GALAXY NOTE 3 is little bit different than other Android microUSB, because SAMSUNG GALAXY NOTE 3 use USB 3 for MicroUSB port but it will give better speed to transfer data. Anyway, do not worry if you already have older standard microUSB port to charge or cable data, because the MicroUSB port at SAMSUNG GALAXY NOTE 3 can be also use with older one, but you need more time to charge with standard 1 A charger.
The S-Pen Disadvantage at SAMSUNG GALAXY NOTE 3 is not compatible with older Samsung Galaxy Note S-Pen, so if you have backup S-Pen from Note 1 or Note 2, then we can not use that S-Pen with new SAMSUNG GALAXY NOTE 3.