I don't have a ton o' info...
The physician I rotated with has a very nice setup. She does a mix of clinical research and clinical practice. In the clinic, she basically supervises the genetics counsellors and after they meet with the patient for 1-2 hours, she sees them for about 20-30 minutes. She has very nice hours and work environment.
I'm sure at the other spectrum are the hard-core researchers. Like in all specialties, there is going to be a range of experiences.