I also worked on a quantum (DFT) code in Fortran 95. I agree on your points, once you get used to it, it's basically isomorphic to C but with better numerical s

I also worked on a quantum (DFT) code in Fortran 95. I agree on your points, once you get used to it, it's basically isomorphic to C but with better numerical support. Compared to C++ it's verbose but understandable and with little magic, which is an advantage when working on a team, similar to Java. Main disadvantages I found were rubbish string and IO handling, no standard library of algorithms/data structures (lists, sort, etc.), and (in my codebase) there was still a bit too much reliance on global variables. Most of those are effectively fixed as the high-level controlling code is moved to Python and the F95 code is libraryized.