This is pretty much my opinion as well. I definitely prefer the 24th century novelverse stories over stand alone TOS stories. While I can enjoy stand alone adventures, over all I prefer arcs in general so I tend to lean that way with Trek Lit. The only reason I have any interest in stand alone adventures is because I enjoy what the people in charge of Trek Lit do with the arcs.While my fondest Trek novel memories are from TOS, my enthusiam for new generic TOS (for lack of a better term) books is very low. The planet-of-the-week-all-toys-back-in-box formula been done to death, pretty much.
That said, I can't disagree more with Ktrek. For the most part, I've loved the 24th century stuff that's come out over the past couple of years.
Other than Seize the Fire, which I set aside after about 100 (I'll probably finish it eventually...maybe) I've been enjoying what I've been reading and haven't really seen to drastic of a drop in quality since before the editorial shakeups at Pocket. The only thing that has disappointed me is the treatment of Indistinguishable From Magic.