Haakaa

Anyone exclusively breastfeeding using a haakaa in addition to a traditional pump? Or just the haakaa alone? Will using haakaa alone be enough to keep supply up? I got tired of using my electric pump since it was a hassle to hook up to it because by the time I was set up the baby needed me. All this kinda let me to only pump a few times a week. But with the haakaa o pump more since it’s so practical.... anyone else? Has it affected ur milk supply?