Tested all the screenmodes.
Seems OK with everything except DBLPal and DBLNtsc modes (~29kHz)
Oddly enough, it complains about them being out of range.
50HzPAL/ 60HzNTSC both worked fine in lores/hires.
Text is certainly clear enough to play games.
EURO72 modes appear the clearest when upscaled to fit the screen size.
Certainly clear enough to do word processing or coding.