Anyone who can tell me which one is better KESS V2 or New Genius

I am a freshman about it,and my boss pay money to me,let me to buy a ECU Chip Tuning

Hi
If i was buying my kit again, i would look at Genius, my only reason being that with the kess you have a laptop connected
where Genius has not, so less to go wrong, as Genius direct connection to obd, where kess has laptop and any issues with laptop
could cause you problems, It's not all just connect read and write as led to believe,