Arriels tend to be sensitive to throttle inputs on the start. They can wind up very quickly, and need your full attention. The RR 250 series is pretty much the same. PT6 starts, OTOH, are generally uneventful. Once a turbine is running at flight speed, it seldom needs much management - you just adjust collective as necessary, and the fuel control takes care of the engine. You have to keep an eye on limits, and the first limit may be N1, temp, or something else, depending on the engine(s) and the environment.