I have two of the carbon steel barreled versions and have put quite a few rounds through one of them. I swapped out the factory trigger group for a two-stage from Kidd and added an adjustable cheek riser. In bone stock form it shot well. For example, here's one of the first 10-shot groups at 50 yards shooting SK Match ammuntion. I have a brick of SK Long Range Match showing up on Monday since I primarily want to shoot at 200 yards with this thing.
The BXR has a threaded barrel but it's backwards compatible with standard 10/22 v-block type barrels. I don't see myself swapping this barrel out but it's an option for those that want to do that. Overall I think it's a solid product for the money and certainly a lot of fun when ringing steel at 200 yards.
Here's the rifle in its current form.