Food is mediocre, Horrible service. Waitress charg...

Food is mediocre, Horrible service. Waitress charged me $5.50 for onion rings, menu says sub from F.F. for $1.99 asked me to come back so she could charge it correctly next time. Then, did not bring me change ($40 on $31 tab) and said she did. I clearly saw it in her hand. Order was wrong, somehow 2 bacon cheeseburgers came out incorrectly, one didn't have cheese, one didn't have bacon. The waitress got another bartender to see if the tab can be corrected and they blamed it on the P.O.S. system...... not a good experience.