current plans for AoR line essentially make it so you have at the end the equivlent of a permenant fixer short hot, ok the short hot can POTENTIALLY tick for more and ticks 1 second faster but is not able to run permenatly.
Even at lower levels its above that of fixer long hots.
Sure it could heal more, all hots could these days, only one thats had a reasonable update since the pre-SL health amounts has been the fixer long hot.
But at the same time its not meant to make you invincible or be the uberest of defenses but something to tick along increasing the general survivability of keepers. And considering you dont have to cast it, and it can't be stopped and it heals a reliable amount I dont think your getting a bad deal.
Sure it costs 10 perk points to get it fully done but I think if they added a few decent perk actions in with it then the cost will be worth it.