Customer support plays a key role as long as you host your website. There are different types of issues that might arise such as technical issues, malware injection, etc at any point in time and they are the reliable people who can guide you in the right way whenever they happen.
Good hosting companies offer 24X7 support around the year through different methods of communication such as Phone, Email, Live Chat, etc. However, most companies provide support through email or ticket-based only.
Live Chat support is offered only by few hosting service providers. When you don’t like to wait for a long-time for their reply and want to communicate immediately, having live chat support is highly useful.
So it is always better to learn how they offer support as it would be easy to communicate for you whenever needed in the future.