OK, i finally made test flight with my new P3SE and i must say that i am impressed. Here is quick comparission with my standard.
Camera: i would say that quality of the video apart from SE is 4k is pretty much the same, maybe slightly better but without more comparission i would say that are very close
GPS: my P3S is always pretty fast in acquiring satelits but because SE also using GLONASS it was almost instant, also on p3s i usually have around 9-11 sats on SE i had 19
Range: this is what impressed me most, i am in EU so in CE mode, best distance i was menaged with p3s moded with MP 5.3 and latest firmware was around 800m, with SE without any mods and latest firmware i went for 2,3km with both control and video feed signal strong but i decided to bring it back because i didnt want to push it on first flight, i will test the max range in coming days and report. Also latency isn't bad at all, maybe even better then on p3s. Don't know how DJI accomplish this but they did somehow.
I would suggest everyone who wants to buy standard to seriously consider SE, because it is around 100usd more and almost all people who buy standard are disappointed with the range and then trying to improve it with argtek, dbs etc and at the end will spend around same amount of money and not get same result and also missed features like glonass, 4k camera and VPS.
Edit: Only downside for now is that SE isnt support in Litchi or any other 3rd party app because DJI still didnt update SDK with SE support, i just hope that they will soon because i like Litchi much more then GO.