Great burgers. Nuff said. Been here several times. Prices are good. Staff friendly. Yum!

We've been regulars at this bar for many years. Under the current ownership things have changed for the worse. The servers cannot seem to get your order right. And if you like wine, you'll get a very

What happened to Mainstream's service??! My husband & I are longtime fans of Mainstream Bar & Grill - hands down the best burgers in Waukesha for more than a decade! We'd heard there were problems wit