I'm using it for the last week to build up my audience. It increased my comments and my messages posting a lot.
No issues so far, functionality is working and they added features for timezone to make it look even more like a non bot.

Very easy to setup and no extra steps to make it work.

Would have liked it I could add a small description of my interest for the comments so that it follows my intention with the comments it does. Like add occasional links or things I've done or showcased in my posts or simply say something about my work