Hello Brennen,
The only recommendation I can really make for such an neat wireless mesh solution is to change the DNS settings, I made the recommendation here on another forum post. If you take a look at this Komando.com article you can see you have a few options for DNS providers, yes it is fine to configure two different DNS servers. A good reason for having multiple DNS providers is in case one goes offline for a wile the secondary will take over.
If you are actively having issues with your wireless signal take a look at the recommendations from Eero.