I'm sure that Irish food in Ireland is wonderful, but here in the US, Irish themed places are def not my go to kind of place. Mavis' location is great, right off I-480 and SR 91. There is a bit of a surprise with the menu that includes burritos, tacos, Pierogi, and gyros. And some good versions of these dishes.
The interior decor is quirky and fun for a strip mall location, and the service is (as with many places in this area) well intentioned but lacking in execution. Please, restaurant managers, let your people know that delivering food from the end of the table and then letting your guests distribute the food is a BAD practice. We're dining in your restaurant to feel welcomed and served.
Overall, this place offers a decent product and service, but nothing out of the park. If you're traveling I 480, give it a shot.