It's good, not my favorite show (probably Justified). I am really, really looking forward to Constantine. In fact, I think what we are seeing across TV is an explosion of high quality programs that aren't sitcoms and are not reality based (fantasy in other words), all shot on location. Walking Dead, Grimm, Person of Interest, Sleepy Hollow, Agents of Shield, Fringe (now gone), Almost Human, Gotham, soon Constantine. Not counting Once Upon a Time, because while popular, it isn't that good.
Traditional TV, even dramas, were usually set in the present day and rarely incorporated these kinds of elements. There were exceptions like the X-Files and Twin Peaks (Star Trek and spin-offs going farther back), but never so many as now. The Movie industry reflects the same thing, with comics and graphic novels providing many rich story lines.