I've had mine for about 2 months now - no complaints other than I wished it had trans temp / oil pressure readout - it don't. Here's a handy giude to what IS available on my 2005 N/A Roadster :

( tried to attach the .xls file, it failed, so here is the data ) :

POSITION GUAGE
A MPH
B RPM
C COOLANT TEMP
D INTAKE AIR TEMP
E INSTANT MPG
F AVG MPG GENERAL
G AVG MPG - TRIP
H AVG MPH - TRIP
I DISTANCE - GENERAL
J DISTANCE - TRIP
K RUN TIME - GENERAL
L RUN TIME - TRIP
M ENGINE LOAD %
N THROTTLE POSITION
O MASS AIRFLOW 2 GAL/SEC
P INTAKE PRESSURE ABSOLUTE
Q DISTANCE TO EMPTY
R AVG GAL/HR - GENERAL
AVG MPH - GENERAL
AVG GAL/HR - TRIP
DISTANCE - OIL
DISTANCE - SERVICE
MASS AIR FLOW
TIMING ADVANCE
BANK1 O2 1 VOLTAGE
BANK1 O2 2 VOLTAGE
BANK2 O2 1 VOLTAGE
BANK2 O2 2 VOLTAGE
FUEL INSTANT GPH
FUEL LEVEL - GALLONS
FUEL USED - GENERAL
TIME TO EMPTY
FUEL USED - TRIP
SHORT FUEL TRIM BANK 1
LONG FUEL TRIM BANK 1
SHORT FUEL TRIM BANK 2
LONG FUEL TRIM BANK 2
ULTRA GUAGE TEMP
DISTANCE W/CEL ON