Have tried it today.
Works well but with tripod and good lenses.
Why, because it seems that the automatic (embedded in Raw file) and manual corrections are not (fully) taken into account.
Is it possible to use corrections (CA, Distorsion, WB,...), then save into tiff (or other format), and then use the merge Plugin.
That would be more versatile.
Have a Nice W-E.
Thierry