I've used my Intellitouch on my acoustic in the presence of humungously loud bass guitar and other instruments with DADGAD (my "standard" tuning) without problems except on the lowest bass string. Here, if you use the 12th fret harmonic, it works fine also.

I tend to think the pros of the Intellitouch greatly outweigh the cons and it is chromatic and programmable with a backlight.

Peace

moo