Sounds like you've used it & would recommend it?
It definitely seems interesting and possibly valuable, but I'd be a bit apprehensive about it. IE. I feel like its much better to get introduced organically to and advisor than pay for it. When it's pay per minute it seems like they're incentivized to take on anyone whether they can provide solid advice or not. Also feel like there would be a stigma like "here's this guy who can't get an advisor so he has to pay for it".
Edit: I should probably just try it, potential value > potential awkwardness :)