One of my profs with MBDA industry background said that milling the stuff was the dangerous part, since the dust is toxic. However, once finished and cleaned one could touch it. He strongly advised against any structural parts though.
Prof advised against using it for any structural part. Since it is quite brittle it would require too large safety margins or too much though in designing it to gain any advantage from it. Ceramics, titanium, and aluminium would be nearly always better.