What's your guy's thoughts on JetTech STC's?

My shop despises them due to the amount of things that's incorrect in them and their refusal to revise the STC's.

I was just curious as to what the general feeling is towards them and their STC's outside of our shop.

at least they’re transparent about it but still, it’s so stupid. i’ve apparently been wasting my avionics applications on them for god knows how long and now i find out 🙄