We have been using P&O Ferries for the last 5 years to travel to Northern Ireland to visit family. The waiting area is always clean and tidy, it is easy to board and the services onboard are fantastic. There are often deals on ticket prices and we always buy when these offers are on. If you are a foot passenger or doing rail and sail then the prices are excellent. It is more expensive to take the car on the ferry but it isn't extortionate. You can also take your dog with you as there are kennels onboard (these are on the car deck, so can be noisy) but we just leave our dog in the car. When we have had to contact customer service, they were very friendly, knowledgeable and dealt with our query quickly. We have only ever had to cancel once (due to covid) and we didn't have any issues getting a refund.