How would you compare it to a traditional OLAP solutions (MS SQL Analysis Services in OLAP model (not tabular), Essbase etc.) in terms of :

- multidimensional / hierarchy modeling for analytical purposes

- permissioning model (roles with element-level granularity, ie. User A - allow Country=USA, User B - allow Product=Bike)

- historical modeling (built-in slowly-changing dimensions support)

What is the underlying storage model? Is it a column store ? Is it closer to traditional row-based stores?

Are you taking advantage of GPUs or other dedicated hardware to accelerate BQ?