IMHO it's far easier to operate a P&W PT6 (turboprop) than a P&W 985 (radial).
With starting the PT6, so long as you've got the battery capacity, revs and the spark she'll go - it's a monitoring job to make sure it all goes to plan. Want power - push the power lever forward, want to go down - pull the power lever aft. The only drawbacks (apart form the cost) are the time it takes to get useful thrust from commencing the start sequence (I fly floats) and the effect of cycles on engine life.
With the 985 they can be a bit of a b
to start especially when cold. They need the right amount of prime, and then gentle coaxing as they start coughing to encourage them to come to life. With the huge amounts of mass being thrown around throttle movement has to be gentle. The 985 needs to be throroughly warmed, and power reductions managed to avoid shock cooling. Then there's the mixture control and carby heat - things that don't exist on a turbine.
OK abusing a PT6 can damn expensive, but I'm with 18-wheeler on this one.