has anyone used Kikoff and what was your experience like?

I keep seeing Kikoff mentioned when people talk about building or establishing credit, but I haven't really seen enough firsthand experiences to know what it's like to use.

Has anyone here actually used it for a while? I'm mostly curious about the general experience, like whether it was straightforward to set up, how useful it felt over time, and whether there were any surprises after signing up.

I'm not expecting some magic fix for a credit profile, but I do like the idea of having another option besides immediately going for a credit card. Just trying to get a better sense of whether people found it useful for what it is or if they ended up cancelling it.