Any old building is going to have issues. This building was not built by amateurs. It has very nice proportions, with most of its original brick openings intact. It would be great if the patched over areas on the ground floor facing Bay Street were restored. The interior would be likely pretty grim given this building's history, but there could be some usable fragments. Good luck to whoever is working on reworking this, stick with it. If you do it right, it will be immensely satisfying when you are done.