I chose it depends and hardly ever. Mostly I don't cheat during game play, but I do use the MoveObjects cheat a fair bit for aesthetic purposes, I'm also starting to like buydebug for the spawners, fish make ponds look more pondlike, butterflies around bushes also add realism, but I feel I shouldn't put rare spawners on a starting lot, putting say minnows in the pond, well I could do that easily enough in game but they wouldn't be visible, putting in deathfish, that's cutting corners, and fairly big corners at that. Otherwise I use cheats to fix bugs (like the drop traits one or if a Sim gets stuck) and sometimes if I'm just testing something I'll use motherlode so I can buy the object I want to test. The Grim challenge was actually the first time I've ever used static needs, it was interesting to try out, but I don't think I'll be using it much.