First of all, I should point out that yes, while Lily does talk with a 'posh' accent and sing in a 'chav' accent, and her music is quite 'chavvish' in flavour, I sincerely doubt that it's a move to sell records. I suspect it's simply the sort of music she is into, and if we all went by that argument, then we should also lambast the likes of Eric Clapton for playing 'black' music, and so forth.
Onto the album - while most of the single pulls are reggae-flavoured (Smile, LDN), there is also straightforward pop (Everything's Just Wonderful, Alfie), although Lily's delivery is far from sugar-coated. Her lovely soft voice weaves effortlessly through the music and her sense of rhyming and timing are inspired at times. The album does come with a Parental Guidance sticker for a reason, though - Lily has slipped in the odd swear word in just about every song, or a reference to sex, so while the cursing isn't constant, be warned that the c-word does crop up, as does the t-word in Alfie and in both cases you get the feeling that Lily slipped them in because she finds it funny and could have easily left them out.
Subject matter seems to be split fairly equally between wry observations of the world around her (Friday Night, Knock 'Em Out) and digs at her ex-boyfriends (Smile, Not Big). Each song is varied and strong enough to stand out from the one that comes before. My personal favourites are Knock 'Em Out with its stuttering drumbeat (about unwanted attention from undesirables), Everything's Just Wonderful (a well-written anthem about the burdens of most young people these days) and Friend Of Mine, although I think that just abut every song on here is a winner. However, Take What You Take is an awful pop-by-numbers song which should have been left off in favour of the far more superior B-side Nan, You're A Window Shopper.
I believe that this is a fine album and one that proves Lily Allen to be a consummate songwriter and singer.