M1 Plus is the better version of M1 Spend. It carries an annual fee of $125. The benefits are
1.5% APY checking account
1% cash back on all debit purchases
Up to 4 ATM fees are reimbursed (per month)
You can get an extended afternoon trading window
0.25% discount on borrow rates when accessing their extended portfolio credit line, which brings us to the next question...