Unless I am missing something (like the picture of the full panel
) if the LCD packs up, you will lose
rpm
mp
egt
cht
tit
2.5 US dollars
fuel flow
fob
oat
all in one go.
Otherwise I agree it is pretty neat.
I would always back up the OAT, and have done with a 2nd probe feeding the GTX330 OAT option (which can be grossly inaccurate BTW).
And on a long flight, the loss of the fuel flow data will mean a landing ASAP.