The Cessna 400/350 look great and everything, but being a newbie one would better go for a simple operation aircraft (single lever cirrus) than to throttle/prop lever configuration in the Cessna
If you think the prop rpm control is in the slightest relevant to pilot workload, or relevant to the technical knowledge required to fly one of these things, you need a new instructor
It was a Cirrus marketing gimmick, for which Cirrus owners are paying with a load of fuel, and cockpit noise level, for ever......