RE: Next plane??
If you want to make a gentle move up, check out the HobbyZone SuperCub. If you want a bigger jump, check out the ParkZone Stryker.
The ParkFlyers Cessna has mixed reviews. Some people love this plane, while others have found it to be so underpowered that it barely takes off. Also, practically everyone agrees that its electronics are horrible and need to be replaced right away.