I haven't noticed any difference. Maybe because when they're away it's a vacation from therapy for me, like this week with CW? So it feels win-win. (Maybe they look forward to me being away too!)

Also I think a lot of posters worry about something happening to their therapist on vacation or that they'll change somehow in their attitude toward the client while they're gone. I think it's harder to envision those scenarios when the therapist stays in their normal place.