I haven't used Stripe Atlas personally, but I did see this the other day...https://news.ycombinator.com/item?id=21952809

One other thing to note is that besides the initial $500 setup fee, they additionally require you to pay $100 a year + $25 a month for bank account maintenance with SVB.

A few other key differences can be found here (side note I own Blook :P) https://blook.io/stripe-atlas-alternative