I'm impressed by AK too, bought the bundle a year ago for $85, I think, and even full price is well worth it.
Never liked upright piano that much, but AK upright is there every project almost. And going in and tweak Rhodes and you are home again.
The sad thing is that they now sell it for $29 means their business is not going so well. It seems desperate, kind of.
Is it piracy taking another victim?
Many that started as software businesses now moved into hardware, Arturia, NI, Waves and others.