i believe those only work if you get the killing blow, they are fantastic when running solo for sustain
if your in a 4 man group dungeon, it can still be somewhat helpful but you might not get as much use out of it if there are fewer adds or you dont actually contribute much dmg as a healer
usually from most of my experience, the quick rez cp (i dont remember the name) is pretty useful in groups, faster rezzing helps recoveries when a lot of people die
i have my main house (grand topal hideaway) listed in the housing tours, it has multiple target dummies, scribing altar, and grandmaster stations (in progress being filled out), as well as almost every antiquity furnishing on display to preview them