We operate a city-based bicycle tour company in Sydney, Australia (Bonza Bike Tours - www.bonzabiketours.com). We have been using a custom-built booking system for over 10 years. We know there are some great new booking systems for companies doing day tours (Rezdy, Booking Boss, Fare Harbor, Zaui, etc.).
Does anyone have any recommendations on these booking systems? What have been your experiences, good and bad, with the system you are using?