They do take walk ins for a bath, so i dont know why you'd need an appt for a nail trim.
Schedule it but it doesn't mean they will honor the appointment.
Usually not, thou might have to wait a bit. If your schedule is tight, call ahead.
I would call first but usually no. I never have needed an appointment but have known people who call ahead as a precaution
I would call first. All according how busy they are.
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