I think they are ok. Ian Brown is an appaling singer though. I have heard few singers who are so out of tune both live and in the studio. Brown was lucky to be working with John Squire, who is a great guitarist.
Their debut album has some great songs on it. 'I am the Ressurection' is my favourite, I also like 'She bangs the Drums' and 'Made of Stone'
The 'Second Coming' was actually a better quality album, in terms of musicianship and production, but the masses had lost interest in them and had moved on by then. It was also more of a rock and blues album and they seemed keen to try and ripp off Zeppelin and discard their Indie robes. It was not what their fans wanted. Their fans hated 'rock music'