Some of the weakest point of this game is the fact that "exclusive" cars are locked with gacha mechanics. True, you can build any car up to spec, but there's that certain need of "I want this car" that you will never get through buying cars.
Other weak part is how cars don't seem to go as fast as it should. Acceleration seems to be veeeeeery slow even if you tuned your car with higher torque and all. Other than that, the general driving feel is quite realistic, you can expect the game to play like a simcade would.
Game does offer AI race, but it's best to forget it ever existed. The AI moves like a tank, they won't budge if you accidentally hit them, and they'll ram you real hard if you're in their way.
Online lobby has a small issues where the game will stutter slightly when someone joined. No, there's no collision with other players and when I asked about it they seem to not want to implement such feature due to many factors that doesn't work well within their engine.
If you're playing the game expecting high level of simulation, you'd probably be disappointed. But, if what you want is a simcade like Gran Turismo on your phone with online lobby and whatnot, Assoluto is the best thus far.