The main thing to note is if you don't like dry and dark humour that doesn't stop to give you time to process and signal that yes, that was a joke, then you will hate this.
There is a prominent Mitchell and Webb vibe from the show. But it definitely differs in tone somewhat from Peep Show and their various sketch shows. Personally I found this incarnation less appealing than those previous works, but there is no real reason why someone couldn't enjoy this more, it's just a matter of taste.
Overall if you are a fan of the duo then you will probably enjoy this, I think the only thing it lacks is a likeability factor with the mains. You never connect with them properly and there is no mechanism this time to falicitate this despite their apparent dislikablilty. I thought you were supposed to mellow out in your old age as a comedian, not get bleaker!