How do you tackle bad reviews? That’s a tricky one because you can’t possibly please everyone and people love writing bad reviews.
As an owner always be personable and friendly, but not too friendly - it's best not to talk to customers for more than a minute or two. No ones likes to eat cold food just because they are too polite to tell the overly friendly restaurant manager to go away so they can enjoy their dinner, or even worse, the date that they are on.
Let people know you and remember them and if you can, and always take special care of everyone who comes through your door.
By following my advice, your TripAdvisor status should be good to go!