On the theory that you don't miss what you don't have, I'll say it doesn't add value until the first time you use it in flight. I can go without but, like a moving map generally, really like the extra situational awareness it gives you with a quick glance.A bit of a tangent but ...
What are folk's thoughts on geo referenced approached plates? Some apps give you that for free while some upcharge for it. Not IFR rated, (but plan on starting the rating in the spring) so I really don't know if it adds value or not. I am considering going from Insight EFB to ForeFlight but you need FF Pro for georeferenced plates.