We've used OLVS for several years now. They have changed their books and plans a bit since we started, but for the better I think. Not innovative, just more user-friendly in approach. They are certainly orthodox and traditional.
We do supplement with a book here or there from other Catholic homeschool resources, but in general, we use OLVS all the way.
That being said, I like the way MODG approaches schooling using history and literature as a basis - but it's not laid out overall the way I prefer. But that's preference - and I will say that they are traditional-friendly if you want to make substitutions. Just call them and tell them you are a trad, and what you want to supplement, and they seem to work with you.
:)
PS - CHC has some nice reprints of pre-V2 Catholic books, such as The Little Apostle on Crutches, and they have study guides online, for free, to use with them.