I've had zero problems with my Blink. Most people who have experienced problems have had network issues. It's not so much the charger as it is the software establishing the network.
If I had a choice at the same price I'd pick the ChargePoint without hesitation. But if the Blink ends up costing $1200 less I'd go with the Blink. Even if you have network problems it will still work. At worst if you toss out the Blink you can pick up a EVSE Upgrade or SPX Express unit for less than $1200 and just plug them into the installed socket.
If I had a choice at the same price I'd pick the ChargePoint without hesitation. But if the Blink ends up costing $1200 less I'd go with the Blink. Even if you have network problems it will still work. At worst if you toss out the Blink you can pick up a EVSE Upgrade or SPX Express unit for less than $1200 and just plug them into the installed socket.