The NitroPlanes' Dynam Spitfire proved troublesome for me!

I usually can fly anything, but this Dynam Spitfire has me perplexed. Reducing throws as far as possible, balancing it perfectly, and being delicate on the controls was futile!
The slightest "up elevator" causes an immediate tip stall! The plane flies "Pitchy" with the nose weight in or not!
I would have trouble recommending this plane, until I hear from Nitroplanes
for other information.
The cost is $129
Almost RTF: Ready to Fly right out of the box
(Everything included and 90% assembled)
However, using the supplied glue will take a couple days due to drying time.
Beautiful design and great details: Resembles a real plane
Factory-finished with stunning appearances
3D Aerobatic Performance claimed, and it should.
Construction: Lightweight, strong, and crash resistant.
Easy take off from the ground or handlaunched.
Powerful Brushless A-22 Motor
25A Brushless ESC
9G High Speed and High Torque Servo
Strong wing
Full function 4 Channel compatible transmitter with Aileron control, Elevator control, Rudder, and Throttle.
Durable pre-colored foam fuselage, wings, and tail
Battery: High Quality Rechargeable 11.1V 1250mah Li-Polymer Battery for 20 minutes flight time (Upgradeable optional battery for even longer flight time).
90 Minutes auto peak detection charger with 1.5 amp ac power supply included.
Specifications:
Wing Span: 961mm
Overall Length: 789mm
Wing Area: 13.2dm²
Drive System: Brushless A-22 Motor
Servo: 9g x 4 pcs
Speed Controller: 25A Brushless ESC
Radio Control Range: 3000 Feet (1000m)
Stay tuned for Part II, after I hear from Nitroplanes.
Thanks.
Dave