I tried it. I absolutely love it. The Solstice has the same handling characteristics as my Miata. And its really easy to pick up and be fast. Sliding it around Laguna Seca took all of 3 laps before I was competitive.
Working on getting my promotions out of rookie this month. Already won me a few races. It's great. Very clean racing too. I thought LFS had great netcode, but this is that tiny bit better.
I still love LFS's teaching tools. The suspension readouts, tire deformation, force views, racing line, etc.
The fact that ALL of that is taken out (especailly the line) evens up iRacings playing field and allows players to be more human (less race by numbers) and spend the time learning the car and the track much like in real life.
When I want to just drive for driving sake and maybe casually race with other people, I'll come to LFS for a few drift laps, or race laps, or when I just want to play with a road car. No one does road cars like LFS.
But then, no one does serious racing like iRacing. I don't know what kind of matchmaking witchcraft is going on, but I've had really close racing in iRacing. In LFS I'm always midpack without a single car near me. Mind you, I'm still in fixed setup races. Which do wonders for competitiveness. I can't wait for fixed setups in LFS.