I love the visual look of Dirty Split, which looks as if designed by Shag (and as if the title screens were by Saul Bass). The game itself is a conventional point-and-click graphic adventure (built using the Wintermute engine); the protagonist is a Joe Friday sound-alike private eye, hired by an heiress whose son has been accused of murder.
It's not a long game -- experienced adventure gamers should be able to complete it in two or three hours -- but it's enjoyable enough for its duration. The puzzles are not too obscure (except for the last one, which is kind of ridiculous, and I got only through the time-honored technique of "use everything with everything"), and there is a walkthrough, should you get stuck.
Dirty Split reaches for, but doesn't quite achieve, the wit of the Lucasarts adventures; the voice acting varies from the pretty good (the protagonist) to the embarassingly hammy, but is reasonably professional (not a forgone conclusion, given that the developers are German -- there's a German language version too, for those who speak it). There are also occasional English infelicities (one is despairing, not despaired; people with Noo Yawk accents do not pronounce the 't' in 'often'). But they are minor, and not excessively jarring.
It's perhaps not quite at, say, Dave Gilbert's level -- but not a bad little adventure game, either.