Businesses that set themselves up as Trusts to avoid or minimise tax, just gives the whole thing a dodgy feel to it if they are being sneaky in one area. I'm not saying that these people are doing that, but until these people screw me over, they are cheap and easy enough for me to keep using. (about once every two years)
Since Amazon started shipping to Australia, between them and BBTS (and annual trips to America) I haven't needed to use shipping forwarders enough to set up one of those storage lockers or go through the hassle of testing out a new one... so I just stick with this one for as long as they keep delivering what I pay for.