I've never been a huge Gunslinger fan, but something about the illustrations just made me cringe. It starts off with vultures picking apart a body. Then flashes to Gilead, which if memory serves correct, is a hill outside of Jerusalem, where we see vaguely Gothic-era architecture and a half-naked woman reminiscent of King Arthur's Guinevere. We again return to the western as Cort and Roland have their show-down, "this town ain't big enough for the two of us" style, where my favorite character, David, is ripped apart. Literally.
Otherwise, I enjoyed the plot, I liked that the mom was a skank, and the dad... well, Issue One doesn't share too much about the father except that he's a cuckhold and his face must be remembered. I'd recommend reading it if you don't know about Gunslinger, but otherwise... "eh".