Thinking About Adding a Golden Retriever to the Family

I have been considering getting a dog for a while and wanted to hear from people who already have experience with the breed. Golden Retrievers seem like great companions because of their friendly nature and ability to adapt to family life. I have been researching options like golden retriever puppies for sale, but I would like to know what things people recommend checking before bringing a puppy home. What should a first-time owner prepare for?