HMV have an on-line review of TRC, quite positive stating that it is a "daring album that deserves classic status" and commenting that it is the kind of album Prince would have been unable to release on Warners without having to make major changes to it.
Somewhat confusingly, the review also mentions that one of the standout tracks is "U make my sunshine", "a soaring gospel duet" with Angie Stone?

http://www.hmv.co.uk/

[text follows...]
Prince would have had a great deal of difficulty releasing this album under a Warner Bros. contract. They may have rejected it, or at the very least ordered him to make changes. Now Prince is 'free from any contractual obligations', there are no limits - insofar as having to compromise on his artistic creativity or bow down to commercial pressures for the sake of shifting units, repaying an advance or pleasing the men-in-suits. Now Prince has only to please himself and his faithful followers.
Some may interpret 'The Rainbow Children' as another name for The Jehovah's Witnesses. The conceptual messages delivered in the songs are indeed highly spiritual as well as being political and celebratory at the same time.

Musically, the album is a mix of jazz, funk and Broadway musical - with newcomers Najee and John Blackwell firmly making their mark. New girl group Milenia and Kip's vocals are also a revelation, whilst Angie Stone excels on the soaring gospel-flavoured duet 'UMake My Sun Shine'. Elsewhere, Prince plays tribute to his musical heroes Miles Davis ('The Rainbow Children'), Andreas Vollenweider ('Digital Garden'), James Brown (on the dirty funk workout 'The Work Pt1'), D'Angelo ('Muse 2 The Pharaoh') and Stevie Wonder ('Everywhere'). Overall, a daring album that deserves classic status. The spiritual essence of 'Lovesexy' - this time hardcore and uncensored.

[Thanks to everyone who sent this in... -Ben]