I looked at the H9 and The TC Electronics GMajor 2 and ended up selecting the Gmajor 2 as I got more 'bang for the buck'.

I have it in the FX loop of the 11 rack and have found that when using the harmonizer, you really have to play with the input/output levels and the effect mix on he GMajor 2 to avoid the warbling/phasing issues. When you get it right, is sounds pretty darn good!
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I'm a practicing guitarist, one day I hope to get it right..