Plaid's other weakness is their opaque, enterprise-style pricing, which is seems like Stripe is doing away with. Hopefully they can bring the price down, because lots of consumer-facing use cases aren't viable due to the high monthly price per connection.
I hope they add support for investment account holdings—it seems like Plaid is the only one that does this well.
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Edit: digging deeper, it looks like Stripe proxies to Plaid-like "service providers" under the covers—at least for institutions without OAuth flows. [1][2][3] Presumably they'll build in-house connections over time, but it dents my hope that their connectivity will be better than Plaid's. Either way, transparent pricing and more competition in the space is still welcome!
[1]: https://support.stripe.com/questions/what-is-the-relationshi...
[2]: https://support.stripe.com/questions/how-does-stripe-limit-d...
[3]: https://support.stripe.com/questions/who-will-obtain-my-fina...