In my demo I didn't notice tonal differences between the Grahams and the Harbeths. It was not a case of increased apparent detail by goosing the presence region or trouble. If anything, the Grahams increased resolution made them more relaxing because it was easier to connect to the music. I also wouldn't say that the Grahams are at all clinical. I can listen to Eva Cassidy (not really my thing) without thinking it's intolerably bright.
The 5/5s image very well. Don't let their boxy shape fool you. About a month ago I asked my wife to listen to a really well recorded song (Kate Rusby's Mark Radcliffe folk sessions version of Ghost), and she said they are right there in the room with you; it doesn't sound like anything's coming out of the speakers. She doesn't have much interest in the stereo and usually reads when I listen.