I did all my training in USA (except ATPL ground that was done on Oxford), after did all my conversion from FAA to EASA in National, and I didn't have any issues, even they offered to shorten my training due total amount of hours and hence could use Competency Based routed instead of full length (saving me some hours for both CPL and ME/IR) which specially with ME I appreciated.
Airplanes are old overall but in good shape, sim is really old but again does it's job, and instructors really nice, so no objections to proceed with National Flight