I think he's a fine poet and some of the samples he uses are quite catchy. Yes, he's a chav but that's what makes it so much fun - he talks about everyday stuff that people can relate to. He's keeping it real.
Love the first album, especially The Irony Of It All, and although his new one isn't quite as high tempo it's still worth a listen in my book. My favourite tracks off the new one would probably be Fit But You Know It and Blinded By The Lights.