The game is extremely repetitive, it's no Saints Row, there isn't much depth to the gameplay or missions, and 90% of the time you are at a HUGE disadvantage because you are fighting players that bought SUP3RL33T guns. The vehicles handle worth stuff, it's literally more efficient to just sprint to your destination because the amount of times you'll crash your vehicle makes driving almost worthless. Combat is almost entirely luck, or whoever gets the jump, because while there's a "lean" mechanic, it's completely worthless and gunfights just consists of you running back and fourth, trying to get shot less than the other player.
HOWEVER, customization is absolutely PHENOMENAL. I spent hours just making outfits for my character and did missions just to get money to buy more clothes and stuff for my car. The only thing it lacked was weapon customization.
All-in-all, it's not worth it. If they completely overhauled the entire vehicle/driving thing, then it might be worth it, I guess, but otherwise it's just a waste of money.