The Phenom T1 may well be a biz-jet, but it's about as simple to operate as any twin engine aircraft. Fuel, Hyd, elect and pressurisation systems that look after themselves. Straightforward autopilot and flight displays. Engines operated via just a thrust lever. No mixture, prop, condition, feather bits to worry about!
I'd much rather send a pair of studes up on a mutual solo in a Phenom than a King Air or a Jetstream or a Varsity!