Our school just changed our Wi-Fi network to certificate login instead of password, should I be worried?

So our small university changed our networking from regular wifi to wifi with certificates. They use securew2 to setup certificates on android and root certificates for linux. Should I be concerned? I know on iOS the certificates are marked as untrusted from what many students have told me. What should I look for in a certificate as I really don't know much but hate the idea of installing something on my phone to use wifi....