I mostly do TT and seldom race online. The great thing about Arcade TT (as oppose to Online TT which lately has been PP based with no tire restrictions) is that S2 is the max tire allowed. This gives the cars, the closest to real world performance as oppose to just being fast. Most of the times I would even use Normal tires(N1-N3). I have had a few gratifying online races but those are so few and in between. Hopefully when PD got their s**t together and gives use private room, or at least longer races with S2-S3 tires restrictions, then it might pique my interest. And with the August 1st update, the AI opponents have become faster and competitive that I'd rather do an Arcade Race (15-30 laps) than racing online.