Liz Walraven is a great instructor! My husband, daughter and I all take her Power Cycling and Power Yoga classes. She's not only tough but also so motivating. Because of her, we are more fit than we have ever been. We always worry that some day she'll leave. We can't imagine what we'll do then. I can honestly say that she is by far the best trainer we've ever had. We just wish she taught more classes.