This is mostly written to counterbalance the (what *was* that? Jilted ex? Why so bitter?) one star review which practically no one has found helpful. Since that was essentially an attack on Join Us, I'll feel no shame whatsoever defending it here.
First up, IMHO, TMBG have *never* released an uneven album. Unless it was their explicit intention to do something creatively lop-sided. These guys, who started out "arty" were called out on their second release for its being "less artier" than the first (if the tales be true), and have reinvented themselves a number of times along the way. With reference to this process and the effect it might have on fans, the inner photos from "John Henry" include one in which kids are secretly adding a "We Hate" banner to post above "They Might Be Giants". JH marked a rather large divergence from the experimental to more traditional sounding rock (ironically a big experiment for them), with a full band of real human beings, and they knew this might jar some of their fan base. For me, coming to this band rather late in their career, John Henry was the most difficult to get into, exactly for this reason -- but after giving it repeated chances, it's now among my favorite things to listen to.
Specifically to address the notion that Join Us and this companion album are a real let down or that TMBG have lost some steam or some other random nonsensical jab, I'd have to say that it is their most artistically cohesive album, with a theme that pervades nearly every song, the title, and the history of the band. A Representationalistic Rock Trifecta. It first struck me when I was trying to put together (heh) the meaning of the lyrics in You Probably Get That A Lot, but the theme comes out in various different ways. Note the disparate voices on Spoiler Alert, the singularity of Johnnie, the choice described and the use of voice in Lady and the Tiger and various other phenomena. AND IT'S ALL GOOD. For the love of all that is holy (or unholy for that matter), this is the best work they've done since The Else! ...since Apollo 18!! ...since...EVER!!!
Regarding ARNATQ, sir, if you're not into the B-side sort of stuff, that's exactly why it's not promoted as their next studio album. If you're a fan of The Johns, The Dans, and Marty (how could you not like Marty Beller Mask?), this is worth it. In these hard times, this is exactly the sort of thing that's worth your hard earned dollars. So there! XP/XD