I’m really happy to hear about your project. I’m struggeling with the “cartoon” render cycles for years now. Filmic is bad too. In my opinion, it is very hard, even impossible to render a photorealistic interior with cycles. I spent too many hours doing R&D for shaders, the tonemapping curve and trying alternatives like luxcore and octane. The results or the usability have never been satisfiying. A few weeks ago I tested fstorm and I was blown away, how easy photorealism can be. But fstorm has its limitations, too. Regarding the many stunning Corona interiors I saw and the features it has, it is the best of both worlds, photorealism and production readiness.
So I want to encourage you to keep doing this.