There are nice little differences in the mixes which are quite surprising if you're only used to hearing the UK CDs. I think it's great to hear the albums EXACTLY how they were released in the US back in the Sixties, otherwise what's the point? True, some of the mixes are really sh*tty - stereo versions of I Feel Fine and She's A Woman for example - but at least Capitol are staying true to the project. My advice - buy it! :-)