Still it's not practically usable and that's what counts for me. From what I understand it is plagued with the same issues as the C# AOT when it comes to reflection and therefore serialization. There is a whole list of other issues as well[1].
I think some of this issues can never be solved by the compiler alone but need to be addressed in the ecosystem. It would be important, for example, that the most common and important libraries dispense with reflection to play well with AOT.
Finally GraalVM is just a single project with its own specific agenda. If Oracle changes its mind about these goals tomorrow Java AOT will be dead once again.
These are the reasons I'm still not optimistic about Java AOT, even if GraslVM is really cool project.
