I did indeed find this build fairly useful in mid reaper. I only run mid-reaper at cap, because I run R1 leveling. I also assume that most people have more reaper points (I had around 50) and more past lives (only 11 heroic) than I did when I ran this build. I have enough of the end gear, but I do not have HalIowed Splinters yet. I have also only run this build only once. I did not solo mid-reaper, I only ran in parties. I also did not lead the kill count, but I did not feel like dead weight. I ran this one as an alchemist. I did run a few quests as the group healer because we were in R10, I was not doing as much damage, I was the only healer, and I was the squishiest. I would be curious what someone might be comparing it to as they ask about the usefulness. I feel like reaper points, past lives, filigrees, set bonus, raid gear, and player skill all contribute very havily. I feel this build's strength lies not in end game DPS, but in leveling efficiency, and gear simplicity. I felt it leveld fast enough, that if you are curious as to how it plays at endgame, do a lap. Play some at end game and then decide how long you want to stay at cap collecting Reaper XP. But I am curious as to whether some can build a party around this build at cap.