Rozena is a medium-fast rubber with above average rating for all other attributes. Kind of a do-it-all rubber (not a defensive rubber). Hits, serves, blocks, short game, loops all can be done with great ease. But none can be done top-grade. Hardness is "medium". Speed-glue effect is less compared other modern rubbers.
I think it's well suited to intermediates, developing players or BH of many FH oriented players.