I find the Taylor/Redondo Nightwing title as just OK, I'm not that crazy about it and will probably stop buying upcoming issues. A lot of people seem to like it, though......A comparison to the Hawkeye comic is probably accurate.
The only Nightwing run I ever really liked was the Dixon/Land run from years back, which comprised of something like issues 41-56 (of the original ongoing Nightwing title). Those are in TPB form, but, unfortunately, split in two in that it's combined with other parts of Dixon's run on the title.
I've been reading this, also. I liked the first omnibus a lot more. I've found vol 2 to be a bit of a chore to go through.