Looks are important to users. Think about when you tour a new house or apartment? If it’s a dump and looks like it’s a couple decades behind the times, most people will move on to their next option. It’s not that this is the only thing that matters to users, but it’s what makes them feel comfortable and establishes some trust. Don’t think that you have to have all the bells and whistles you see on these big tech sites to make a connection with your user, but keep in mind that it is important that you consistently update your website to keep it in the best possible condition.