"Of all the varieties, Tundra has the firmest fruit, making it great for commercial production. Tundra is an early pollinating variety. Pair with other early pollinators to have a higher yield."
"Very dense and upright with good growth habit. Medium branching structure and develops a dome shape crown. Tart to sweet / flavoursome berries."
"Width 4 feet x Height 4 feet. Productivity: 6 to 8 pounds in fourth or fifth grow year."
Well... I would still recommend the Boreal series (Beauty, Beast, Blizzard), as mentioned before, for largest and tastiest berries. AND having two cultivars (with overlapping flowering times) will improve yield for both.
But Tundra will for sure give you a general idea of what kind of plant / fruit it is.