Here’s what consumers have asked with answers from Signs.com staff and previous consumers.
It's a real company, but their value in terms of production and customer service are extremely suspect.
You can usually reach somebody via the chat messenger, but it isn't the most useful in terms of the quality of the customer service rep on the other end.
It's a very easy to use site with many option to create the product you want. A minimal amount of time occurred before the product was received (about 5 business days).