I haven't been following this show, but I'm a big Jonah Hex fan, so I recorded the episode and finally watched it tonight.
Overall, I liked it. the actor playing Hex did a good job. The scar makeup was convincing. I wished they showed more of Hex's skill with a firearm. He seemed a little under used.
A few Easter eggs I noticed --
There was a Wilhelm scream in the first bar fight. Gotta love that.
"Albano Gultch," where Hawkgirl meets one of her past incarnations, is named after John Albano, co-creator with artist Tony DeZuniga of Jonah Hex.
The man mentioned as the villain who destroyed Culvert, OK, was Quentin Turnball, one of Hex's main antagonists from the original BA run. (Which I recommend everyone should read!)
Finally, in the final scene between Rip Hunter and Jonah Hex, there can be seen in the background a building with the sign "Kubert's Barber Shop." Kubert drew several covers for the original BA run of Jonah Hex.
It would be fun if they brought the Jonah Hex back again. Anything to counter-balance that awful, awful movie.