After reading 80% of this thread I convinced myself to buy the B146 unit from Shenzen. The unit arrived yesterday, Christmas eve so it's my Christmas gift to myself. Can't wait to install it in the next few days.
I must say, dealing with Shenzen and in particular Jolly was an absolute pleasure. I found her very approachable and answered my emails in very quick time ( some of the customer service people here in Australia should take a note out of her book). Can not say one bad thing about my experience.
Thanks to all who contributed to this thread and sowing the seed for my desire to get one of these units.