I have also Oregon - but although originally a thornless variety, mine has reverted back to the thorny state.
And wow is it thorny! Excellent to keep out burglars I would think.
The fruit is sweet - not at all tart - for some tastes it may be a little bland, so it is excellent as a dessert blackberry, and if I use them in jams I pick some under-ripe ones to mix in for the tartness. Mine have been fruiting well now for about 3 weeks here.