What on earth does "Totally integrated with the AmigaOS Workbench" imply?
Other than that, I have bunch loads of various versions of PPaint, but it never reached the level as DPaint, especially not for animation. I'm looking forward to using DPaint on FPGA Archade some day

Also, in my view AmiStore is a fad, will prob not be around for long, and also a very clumsy way of distributing software, while aminet clearly is not a fad and there are loads of software with aminet integration.