Is Amazing Marvin worth it?

Hello there!
So recently, I've come across Amazing Marvin today(Saw Archer Newton's video on it)

I, up until now, have been using Google Tasks + Google Calendar + Reclaim AI

Within my Google Tasks, I have several lists in an Eisenhower matrix format along with a TODO list which allows Reclaim to schedule it in for me

Google Tasks EisenHower

Now, I'm not sure whether if Amazing Marvin is worth it. I don't think it Integrates with Google Calendar/Google Tasks and therefore, it won't integrate with Reclaim AI.
So I wonder if it is worth it? If so, could you please state out your reasons?

Thanks in advanced!