[DMGRS]

Looks like ECP had a glut of the Bosch units they wanted rid of - it was an excellent deal!
To answer the original question, we had to find a cheaper alternative that still worked; the insert we sell is as close as we can get to the Bosch without the price tag. 3 years and counting in my uncle's CDTi (although he doesn't drive it too much!)

Also to echo other comments, Cambiare are just another aftermarket supplier - their stuff is alright, but the Bosch unit will always be the reference point for quality IMO.
I'm of the belief the part change was a cost thing rather than a quality concern.