Glad to be the first one here. :-D This App deserves more installs.
There're many order recovery Apps here. I've tried most of the popular ones and I recommend you to install this App. It brings HIGH recovery rate and is the cheapest one! Totally pays for itself. Though now the checkbox can't be pre-checked, that has nothing to do with this App.
I also tried its "get it free" campaign which helped with the product impressions. The idea is good but I would be better if I can select product variants. Hope you'll add this feature soon!
BTW, your in-app support responds quickly and really is helpful! Thanks!