On listening to the 2010 stereo mix my first impressions were that my high expectations had been met. I try to keep an open mind on revisiting such a classic as it can be hard to accept a new take on it. The clean, crispness of the sound is instantly evident and the mix is far more dynamic than the original. You certainly hear sounds that were lost before as the levels of each instrument have changed. Where you may anticipate a crescendo or a wind instrument to take the lead as in the original sometimes it is quite different. I noticed the electric guitar coming through a lot more and some of the recorders/flutes/pipes a lot quieter. After a few listens I think that it has been done very well; cleaning up the original with care. There are only 3 criticisms I have, 1 is the change at 11:57, rather odd, sounds like a slip of the mixing slider, 2 the finale of part 1 at 16:55 hasn't got the punch I thought it might have and 3, the finale melody on gloc is almost lost now. That said I will continue to enjoy listening to it.
The 5.1 mix for me was exceptional and very enjoyable. It has been done subtly; unlike the 2003 tubular bells merry go round. The rear speakers are used very well with vocal chords and strings with the main instruments coming from the front. Occasionally you may get duplicate sound in the rear speakers to complement the front giving the listener more emersion. Funnily enough criticism 1 above isn't evident at all in this mix; however point 2 and 3 still stands.
Overall this is a must have for any Oldfield fan, great care has been taken on this and though there are 3 points I have raised they don't detract too much from the experience.