The new gyros are pretty amazing, its not needed by any means and it all depends on what your looking for. I dont think gyros make jets easier to fly they just make them fly smoother and less bothered by outside forces like winds.
You do introduce another possible failure point and if not setup correctly and used right can cause a crash. The good news is most are easy to setup like the demon and even the Igyro if your setup is common, when you do like me a try to get the unit working with a uncommon setup like the a robbe system it can be complex. I currently want to throw mine out the window
