Akeeba Subscriptions v4

Just wondering if anyone has tried upgrading their Akeeba Subscriptions to the new version 4.0.0. Was dubious given how it's been rewritten to be a lot to be simpler if there was any confidence yet if the current hikashop plugin will still be working ok, or if the hikashop plugin needs updating.
www.akeebabackup.com/component/ars/?view=release&id=1734

Hi,

We didn't had the opportunity to test that yet. If anyone has some feedback on that too, we're eager to know.

I took the jump just now. version 4 seems ok from a couple of tests activated through hikashop. Not really noticed anything different at all from the front end. phew.