It is a bit bumpy here and there and as you've already said S do Senna is not that real. Other than that elevation changes are in the correct places so it feels pretty much like the original track. It would be nice to see a v 2 with S do Senna fixed, I think the first part of the chicane has a too high radius.
https://www.gtplanet.net/forum/threads/downloading-others-tracks-without-fr.335172/