I'm conflicted about this. There isn't a single wasted second in Yesterday's Enterprise, and I think too many two-parters end up struggling to fill the running time. A 60 minute episode would be great, but 90 minutes?
I used to always think it worked great the way it was, but now honestly it feels to me a bit rushed and abbreviated.
We have this massive war with the Klingons, the epic return of the Ent-C, our first look at Captain Garrett, a more hardened Picard and crew, the return of Tasha Yar... and we only get brief glimpses at any of those. And the whole thing is suddenly over before you know it.
Of course it could just come down to the fact this version of TNG feels SO much more interesting and complex than the one we normally see, and it's just tempting to want to see more of it.