Choices seem only marginally useful in the absolute narrowest of circumstances.
If it was simply an add-on I'd say great, more options are better.
But I do worry about this as part of a trend.. the close proximity in time to announcing the devaluation of award charts, especially in international premium class and standard awards.
So if this is a precursor to the gutting of those charts or even the end of award charts then Choices is bad. Very, very bad.