This section will properly get the xml response

$directions = new RestfulService("http://maps.googleapis.com/maps/api/directions/xml");
        $params = array(
            'origin' => $data["Start"],
            'destination' => $this->Address,
            'sensor' => 'false'    
        );
        
        $directions->setQueryString($params);
        $xmlResponse=$directions->request()->getBody();

Here is where the trouble comes in:

$node='/DirectionsResponse/route/leg/step/';         
$HTMLStepsObjects=$directions->getValues($xmlResponse,$node, "html_instructions");

//using searchValue as below works fine, but only gets 1 result, not all of them
//$steps=$directions->searchValue($xmlResponse,$node.'html_instructions');


 return $HTMLStepsObjects->Count();

This will always return that there are 0 in the DataObjectSet, which means its not working right. Per the RestfulService API: When you get to the depth in the hierachchy use node_child_subchild syntax to get the value.
I have tried this in many combinations:

$node='DirectionsResponse_route_leg_step';
$node='DirectionsResponse_route_leg_step_';
$node='_DirectionsResponse_route_leg_step_';
$node='_DirectionsResponse/route/leg/step';
$node='/DirectionsResponse/route/leg/step';
$node='/DirectionsResponse/route/leg/step/';
$node='DirectionsResponse/route/leg/step/';
$node='DirectionsResponse/route/leg/step';

(I tried slashes because it worked for searchValue() ).

Would really appreciate any advice! TIA!