A trailer tie-down system must hold the cargo in place in a reliable manner. Everything must be safe and secure throughout the trip so that there won’t be any issues when the vehicle gets to the destination. Motorbikes should remain upright despite less than ideal road conditions.
Many are also clamoring for a system that is easy to install and set up. They want to be able to load up and go quickly instead of being bogged down with the complications. Some are more than happy to drill holes on the floor of their trailer while others want less intrusive solutions.
It can take a bit of study to figure out what would work best for you. If you have friends who are using these systems, then ask them what they think of their setup and what they wish they could change about it. See if they will recommend the same thing to you.