Glad you like your "new" R8
I have been using them for about 6 years now and (apart from the weight, 2 up, which I am prepared to live with) I find them a pleasure to use. Everything falls so beautifully to hand and works so well, I don't see me replacing them in a long time.
Once you have mastered all the controls, it will never get in the way of your photography. I particularly like the way the AE lock and mirror lock up works.