Absolute blasphemy, the OP didn't share http://www.textkit.com/
Anyway, I am currently reading the first book in their latin learning list: "Latin for Beginners", the exposition is good and the pace too, though right now I am at the dense part of the conjugations, the 3rd conjugation in particular is tricky, even more words like 'facere' which are in the 3rd but are sometimes inflexed like the 4th, and so on.
I don't even want to imagine how the subjunctive and participles will be.
But all in all, and even though it gets really tricky, I think that latin is quite the elegant language. Also, it being the richest language in terms of grammatical categories, it's interesting to see how modern languages simplify such constructs by means of prepositions and auxiliar words.