What do you like best?
Forces to somehow move away from VM and use the actual hardware. I like it, even though not everyone does.
What do you dislike?
It seems that SAP miscalculated the UI, again, as I do not consider Fiori particularly well architected
Recommendations to others considering the product
I think, we need some time to determine if this software takes ground. One thing suspicious about it is that it uses non-widely adopted technologies (e.g. HANA, Fiori) and does not take advantage of the open successful developments (e.g. Hadoop, various Apache projects).
SAP simply may not be able to sustain this development as it requires a pile of resources beyond current SAP capacity (people and money primarily) that aren't fast in the making or cheap, especially that all this requires huge research effort
What business problems are you solving with the product? What benefits have you realized?
This is yet at the stage of try-out as it isn't clear if there's a benefit. For now, it seems SAP imposing this product based on the grounds other than business benefit