I do not know what that is. That's the last way behind, to raise funds. A so-called mini-addon (micro would be better) with a small handful -Zwar make tollen- additives and then to sell off the for exorbitant prices, although for a few euros more a complete Expansion Pack gets with hundreds of objects, interactions and new neighborhoods , In the trailers and announcements everything looks so awesome and great, but all the ego -as already with Family Fun were fooled, know better.
I would say: Do not buy immediately, but wait until a general consensus has formed, and then decide whether it is really worth 20.