Not all pages are available for preview, but from what I have seen, it seems to be a bizarre book.
It sets peculiar conventions, such as calling the tenses Time 1, Time 2, Time 3 and so on, instead of using the names under which they are more widely known; and it is extremely wordy.
The chapters (called "encounters") seem to contain no exercises.
I would be amazed if any beginning student of Latin managed to understand the poems of Horace and long prose excerpts from Latin writers that are the first reading sheets and are without commentary (perhaps the commentary is on pages unavailable for preview, but I doubt even this), having read only the preceding chapters: 150 garrulous pages, which contained almost no examples of Latin longer than a couple of words.