The Good
I've used Borderlinx to ship items from the USA to Australia around 10 times in the last 2-3 years. The service works as advertised when the following 2 things happen: (a) your parcel is successfully delivered to Borderlinx's warehouse, (b) Borderlinx accepts and updates your account dashboard that the parcel is received. You're then free to 'release' the shipment. You receive the parcel. Happy. Again, Works when the above 2 conditions are fulfilled.
The Horrible
My last parcel was sent to their warehouse in the midst of their move to a new warehouse. Parcel tracking showed that it was successfully delivered and signed for. To be sure, i sent an email to Borderlinx to find out if all parcels sent to the old address will be re-directed to their new warehouse - this they confirmed, and i was advised to look out for an update to my account dashboard. But... but... two things never showed up: One, my parcel. Two, customer services. I sent multiple email to Borderlinx Customer Services to request for updates, only to be sent cursory/ obligatory responses & apologies for the lack of updates; that the team is looking; that they're 'sorry' for their poor response... and then radio silence. Both my parcel and Borderlinx customer services disappeared.
So it is. If you're intending to use Borderlinx, use it knowing that it's a service that works - Except when it doesn't. And when it doesn't, or when something goes wrong, don't expect your parcel nor customer services to show up.