Initially enjoyed the Temple of Relics. Quickly leveled it on one world, and have been awesomely rewarded several times. However, the "Improvements" made aren't improvements. If it weren't for the Guild's benefiting I wouldn't bother. More often than not the reward is another set of Attempts. That is merely expending additional units to be replaced or repaired with diamonds. If I don't get an Attempt I get yet another useless Gate of the Sun God, or Face of the Ancient, and now several One-Story-Pagodas. Unfortunately, Inno does not concern itself with inequities, only income generation.
I've played this game since it's initial Beta, received a Silver Award, and now I am considering looking for a new game to migrate to. Inno has used Guild Expeditions, which benefits from a developed ToR, to increase income. I was "Excluded" from a guild because I cannot spend freely to the benefit of the Guild. I've been rejected upon admitting to never spending and no intention of spending money in future on GE. Such is life.
Temple of Relics has ruined the game for some of us.