VanishedOne: It's (by design) a slow game, so at least the pace of updates fits the theme. :-P
Gameplay-wise, TE is the odd bit out; normally you control characters and explore/interact as in L&D. Thematically, they both tie into events in the main game, especially Act III: the distillery from TE is introduced (and Junebug actually sings in the bar, at last), and the hidden tape section in L&D starts to make more sense when you discover just what Lula & co. were doing underground.
I'm afraid it's hard to guess whether you'd love/hate/love-hate the game if you reacted so differently to the interludes.
Thanks for your input :) I read a review of Act I on rpgfan.com, and that also helped (my favorite part of the review was a 'gameplay' score that simply said: "The letter Q"). I like slow, artsy, experiential stuff, so I think I'm going to give it the go ahead. Though... I may just wait until the whole thing is available.