But I did audition one and was surprised it lacked network/internet radio when the lower priced R2 does. We wanted it for an office so the all in one tidy nature was important so we bought the R2.
To be honest though, if I was buying it as a serious source of music and I had £650 to spend, I wouldn't buy either. Something like a Marantz MCR611 or Cambridge Audio Minx XI with a set of £300 speakers of your choosing would be better in my opinion.