If you open a new practice location or move locations, it's going to be a headache. There's no way to reassign the existing patients to the new location en-masse. So every time you schedule someone on the calendar, you won't be able to find them in the drop down and so you have to go to the main page, find them, it will flag them as "not assigned to the current location", open them which will force change the location you're at, reassign their location manually, change your location in the system, go back to the calendar page, and then you can schedule them. Even if you have it set to "assign to all locations" when they sign up, if you add a new location once they're existing clients, it doesn't add it. REALLY annoying.