Autostarting Home Assistant on Ubuntu 14.04 Server Fail

Hi guys

Im stuck hopefully someone can help

Im using the init.d script from here https://home-assistant.io/docs/autostart/init.d/

This is the important bit I think - Ive set up a user as per install instructions but nothing seems to happen with the below config

PRE_EXEC=""
HASS_BIN="/srv/homeassistant/bin/hass"
RUN_AS=“homeassistant”
PID_FILE="/var/run/hass.pid"
CONFIG_DIR="/var/opt/homeassistant"
FLAGS="-v --config $CONFIG_DIR --pid-file $PID_FILE --daemon"
REDIRECT="> $CONFIG_DIR/home-assistant.log 2>&1"Preformatted text

When I run hass manually from the bin folder located at
/srv/homeassistant/bin/hass I can then access the front end with no issues at all

Any ideas
Thanks all