This is a never ending dilema. The Chinese models look great, but if you fly them as is, you are probably in store for a suprise sooner or later. You MUST, look them over, install reinforcement as needed, where you see the need. If you don't know what to look for, find someone who does. That includes looking inside the wings, stab connection points, pivot points, wing attachment, former glue joints , landing gear function and durability, ect. If it requires opening up a structure, buy a scope / monitor, and peek inside. The other option is, wait a couple years for reports of failure, and hope the Chinese fixed it.
I'm sorry for your loss, it's very dishearting to spend good money for display quality jets, that are lacking in good old fashion American Engineering, that is still available, but people, ( me included ) really don't want to pay for. You can buy a beautiful looking molded scale jet, for $1500, the insides are balsa and hot glue. Maybe it stuck, maybe not. They are selling wings with balsa spars. As a builder, I'm amazed they last through one fighter style flight. A while back I contacted one supplier about " D " tube spar building, which is top and bottom hardwood spars , with balsa shear webs, ( vertical grain ) face glued in between. No response. It's not going to change, as we keep buying them. I've been doing this for 32 years, for what it's worth.
Thanks,
Dale