As an eCommerce seller that sells both digital products as well physical goods through their site; they have been great at maintaining our inventory in order for us not be concerned about it ourselves! They also offer support from time of request all throughout until after we've received delivery which is wonderful if there are any issues or questions along these lines!! Nothing really bad so far just wish I could go back into my account earlier than now when things were easier/simpler haha but otherwise very happy overall.
Not much yet since this has only happened recently however looking forward towards future benefits such being able solve problems quicker etc will definitely work handily here!! Just getting started using them currently though still trying out new features while learning everything i can learn too make sure amazon works best possible within certain platforms before moving onto other ones :).