Crosswords are like cars. There are some universal assets for both: great themes and strong fill for crosswords, and gas mileage and reliability for cars. But it makes a lot of sense for car makers to create "concept cars" to show off what might be possible. These concept cars may not be very practical, but they sure are cool to look at. It wouldn't be much fun if EVERY car were a concept car, but one every once in a while creates a lot of buzz.
Today's puzzle is in that vein for me. It's crazy-looking pattern. Eye-popping. Those giant white spaces in the top and bottom scream LOOK AT ME! As a constructor, I look at that and shudder for fear of execution difficulties, but for most of the NYT audience, I bet more of a "hey, you gotta come take a look at this!" is in order.
With any themeless featuring a lot of 15's, those grid-spanners must pull their weight, since they won't leave much room for other good fill. If you hit the "Analyze" button down below, you'll see that the longest entries after the 15's are only seven letters long. It's generally harder to come up with great IM IN AWE type entries when you're constrained to only seven letters. More often than not, more neutral words like SCOWLED or INSEAMS will fit in better.
Out of those six grid-spanners, I thought LIBATION BEARERS and I DONT FEEL LIKE IT and EARTH SHATTERING were fantastic. SEMI SOFT CHEESES and ARIZONA CARDINAL lean more toward neutral for me. And TAPPAN ZEE BRIDGE... yikes! It took every cross to figure out, and even then, TAPMANZEE (with MATTI) sounded reasonable. (I think too much about all the fun practical jokes I could pull if I had a chimpanzee. Even better if I had a tapmanzee.) Overall, not bad on this front.
Showy concept cars often have compromises in order to fit everything under the hood, and that's seen in some entries like DERAT, SOLFA and ARRAS and their crossing, the little corners filled with CPL / URI and MTA / SSN. Not what I'd like to typically see in a themeless. Additionally, the puzzle's flow wasn't ideal, being broken into three mini-puzzles: top, center, bottom. I was stymied by the top (which is fine, as I'm sure some people will know the TAPPAN ZEE BRIDGE off the top of their heads), without any way to break in.
That said, the overall effect is still pretty neat. I wouldn't want to see this type of puzzle every week, but a few times a year it provides for a great visual effect.
Finally, a few notes on clues. [They run up legs] for INSEAMS is awesome, exactly the type of clue that resonates for me, personally. (I was thinking about spiders running up legs, or better yet, miniature tapmanzees.) The clue for SCOWLED was less interesting to me, going for an esoteric definition of "scowl" (I looked up "scowl," and one of the last definitions was "lower." Then I looked up "lower," and one of the last definitions was "scowl." Some help, stupid dictionary.). This kind of cluing feels too SAT-ish and unsatisfying for me, but I'm sure others will enjoy it. Even prefer it.
Personally, it was a really nice touch to end on [Bright spots], which I thought were going to be something like HIGHLIGHTS, but was indeed, SOLARIA. Nice misdirection.