Inkbird thermostat? Is it good?

I've been seeing this thermostat around lately. It has 2 outputs, obviously for the price point it's a on/off type. Has anyone used this? Is it superior to the jumpstart?

Here it is:
https://www.amazon.com/gp/aw/d/B0112...rb_top?ie=UTF8

I've not used these particular inkbirds, but I have put together the inkbird stc1000 thermostats, and they seem to be fairly decent so far.

I used this model for a short period of time before I got my Herpstat and it seemed to work fine. It just sits now as an emergency back up if one of my 2 Herstat4's has an issue.