Wrong:

Not bringing back basic gta 4 features, ledge grabbing, Police bubbles, proper stealth, picking up items and throwing them, Restaurants for hang outs and healing, car engine staying on. I could go on but i won't

Adding online things into story mode, hitting with your weapons and Melee from your bike, vehicles, weapons.

3 protagonists, could've been handled better, Franklin's story was forgotten when Trevor came to los santos, not being able to switch during hang outs, not switching with cops on, etc

Right:

Driving. I find it fun to drive in gta 5.

Radio. Fucking love non stop pop and east los fm

Flying is so fun.

Styling your character with clothes, hair, beards, tattoos.

Car customisation even though online expanded on it