Now that permissions have been fixed for Subscriptions, we are using Square to manage them.
We have over 100 memberships at this point.
What has become an issue is finding memberships. My only option is to search by customer name, which is often not what I'm trying to find.
I'd suggest a set of controls similar to the ones on the invoice page which allow filtering of subscriptions and exporting the basic list.
A list in order of desirability:
Seller Community
Square Products