On the plus side, it contains a plethora of valuable traditional Catholic resources, and the directory, while sorely in need of an update here and there, is still one of the best ones out there. At the very least, it gives you good leads as to where TLMs may be found, but following up via an online search is needed. In all fairness, that is a huge resource to have to keep updated.
On the minus side, it is overly critical of the 1962 Missal, and "half Novus Ordo" is a gross exaggeration. The commentaries are a highly selective presentation of the facts. For instance, the commentaries on St Stanislaus Kostka in St Louis fail to bring out that it is an LGBT-friendly venue, calling it only "traditionally-oriented" or something like that.
The anonymity factor, better not get started on that. Many have raised that as a concern.