I'm impressed with what I'm seeing so far. Having graphic access to a couple hundred chord shapes, a metronome, audible ear tuner, and guitar tuner with Standard and a bunch of alternate tunings in a graphically pleasing interface. Nicely done!

I've had no issues of crashes, or unstable behavior.

My one issue has been erratic behavior with the tuner, but only when dealing with my low E string. An email sent to support resulted in a very fast reply, letting me know a 1.1 was in the works, and should be out shortly!

My suggestions: Add alternates to the primary chord shapes. Tie the Tones to the current tuning. (ie, if an alternate tuning is active [by clicking on "Mode" in Tuner] switching to Tones and tapping the strings would sound out the chosen alternate tuning.)

Good app, great support. For the money, this app is absolutely worth it.