Extremely costly to maximize. Rank 6 is usually the most acceptable and cost effective level for most players as exceeding this level will require a very large amount of rare fusion cores as well as more than 1 million credits.
Powers that are not affected by Power Range such as Electric Shield are the most beneficial as the negative aspect will not affect them. Thus it's recommended to only equip this mod on frames that do not rely on Power Range for the abilities you intend to use.
Recommended to use with Trinity with builds focused on long lasting Blessing as it does not really affect her infinitely ranged ability negatively, aside from Energy Vampire having a much smaller restore radius.