Berries need to be eaten in season, and like most fresh produce they taste best the fresher they are. Local sources rather than big chain supermarkets buying bulk at cheap cost, will have better tasting berries in general. This stuff is alive, and every moment its off the plant is heading towards its end!
That said, I freeze a lot of berries. Strawbarries are the ONE berry I don't freeze. Its when the thoroughly English side of me comes out. Strawberries get the texture of slugs if they are frozen, and so you HAVE to choose to process them in someway. The very best way to eat strawberries is fresh and raw....I make strawberry jam but its my least favourite. So whilst we live off other frozen berries happily through the off season, strawberries are pretty much a summer delight for us.
In omnibus amor et iustum