If you can, yes. The build runs great, and IMO its definitely worth it but I wouldn't join a Patreon unless I intend to support a developer for a longer period of time. It's a platform meant to foster continuous developments after all.
If in doubt, I'd just wait and try it once it's public.
You can always join the Patreon then if you deem the product good enough and want it to stay maintained for a long time.