Kit Karts has contacted me once about an abandoned cart, I also use Scout which has highlighted many more abandoned carts....
It's never recovered one order in 3 months
Pretty useless unless you're free to respond every hour. It really should be automated. I would reconsider if they could automate but they already told me they couldn't.
My shopify account has an automatic abandon cart option but I decided to use the Kit integration service to keep it all in one. However, it doesn't send out the emails. I went and check my abandon carts and it had over 20 carts. I was so upset given that Kit had been texting my abandon cart approval and email were not being sent. Maybe there was an integration issue, in my settings I had shopify not set up to send the email so I don't know it it has something to do with that. Since I get it free with my premium service I've decided to end my membership to this app.