I tried from multiple physical locations but I could not increase my downloads past 1-2mbps, and for TB of data, that seemed like it was throttled by BB considering I was easily uploading 20mbps.
I contacted BB support and they ignored me, so I switched to a competing services and have had no issues ever since.
This really made me sad because BB's blog is amazing and their tech is really cool, but when you see people saying "its throttled" its because of real experiences out there, and not just ones limited to an ISP issue.