Not being Australian and completely unfamiliar with Australian TV, I came to Rake without any expectations or preconceived notions. I find the show is hilarious and mesmerizing at the same time, in no small part due to Roxburgh's performance. He's terrific as a cad with a heart of 14K gold plated brass.
In some ways, Rake is reminiscent of, but doesn't imitate, the great Robbie Coltrane series, Cracker, with both lead characters brilliant in their professional lives, yet exasperatingly self-destructive train wrecks once they're off the clock.
The show's been Americanized by Fox, starring Greg Kinnear (an actor of whom I'm a big fan), but I'm avoiding the Fox series because I've been told the edge of the Australian original was sanded down for American audiences. But, it's the sharp edge that I enjoy. If you can get your hands on the OZ version of Rake, you ought to watch it. It's really good TV.