Build = A No gap issue and nice solid feel (for plastic). Feels better in the hand than the Note 3 and iPhone Plus to me. Display = A+ Drop dead sexy. It truly makes the G3 display seem second tier and also better than the Plus. I still would have preferred the tech improvements leveraged for a kick a$$ amazing 1080p, since even better performance and battery life. None the less it is sweet enough to cause cavities. Touch response is great too. Sound = B/A Speaker is okay and seems no better or worse than the S4 or Note 3 to me. Audio jack has lower volume output when using the stock app and this was also pointed out by Phonearena with lab results. Using Poweramp though corrects this and the sound quality is fantastic. Listening to Cake right now Performance = A Smooth experience and again makes the G3 seem second tier. My 3D heavy games are smooth and emulators are over 10% faster than the S4. MAME is still slower than the A7 on the Air, but the 64bit design affords more calculations per clock. The 810 next year should ROCK in this respect. Heat = A Device stays cooler than my S4. The N4 does get very warm when using data in weak signal areas, but that is a tech constraint rather than the device. All current phones get real wam/hot pulling data in low signal areas- iPhone included. Signal reception = A/B Call/text range is great, but the data range seems equal to the S4 and N3 (pre Kitkat signal killer for N3). IMO the reception is not the best, but not in any stretch bad. I am happy with it. The N4 could actually be a tad better than the S4, but going by a typical 1 dBm point difference seems silly. Battery life = A Battery lasts as long as my S4 with a 5200 MAH battery. Impressive IMO. Again the killer is if pulling data in low signal areas. This is a common issue for all current phones. The G3 for comparison has a display that uses about twice the power as the N4, so has a double whammy for low signal areas. Wifi = A Not having the stability issues some have mentioned in some forums. Range seems the usual Samsung good range. Wiz = A- I know some will shun me for this, but Wiz is not the burden it was on the N3 or S4 to me. I turn off all bling anyway and disable animations, etc in dev settings when using any Android device. I do not feel compelled to go to Nova as I have with all previous "Nova era" devices. Wiz used to suck, but now it is fine IMO. Camera = A- Just a zoom lens away and better low light from making a stand alone camera pointless for me. If low light photos were better it would be an A. Overall = A This device rocks some serious hard. What I would like to see with the "Note 5". 1. Stereo speakers on front. Based on the tear down, there IS room for this. 2. 810 or a 64 bit Ex chip. Seems obvious this will happen. 3. Leave the display ALONE! This is high enough res. I am seeing rumors the S6 will be 4K.... Why?!? Complete silly spec racing at the expense of mobile/device practicality IMO. Some of these companies need to put a big foot up their marketing teams butt and tell them to shut the heck up on spec racing. 4. 64 GB option actually offered to consumers and keep the sd slot of course. 5. A dev screen option for card writes with disclaimer for use- if Android weasels out with Android L in allowing the option. It is in the test builds, but the Nexus devices still have no sd slot. Not trusting Android team as far as I can throw them with this. Added: I got this case due to nice compromise for protection / form factor and the holster, since I find the size too big for keeping in a pocket. Would rather not carry a purse either http://www.amazon.com/gp/product/B00MAWRX0Q/ http://www.amazon.com/gp/product/B00G7URWR6/ The combo works great and cost was less than $20. I also have a screen protector of course.