I should preface this by saying that there's no reason to suspect the Agora model will have any of the following issues...
It was a few years ago, so I don't remember all the details, but the two main issues I had with the T72 were with the electronics and the handset. Try though I might (and I had three or four replacement circuit boards), I couldn't get the thing to work properly. It was something like the gun elevation controls being reversed and the fire button only operated the machine gun sounds.
I also had at least three handsets. They'd clearly bought a job lot as they all had identical issues - the on/off switch was very very stiff and would quickly jam. You'd need a screwdriver to move it. Then there was the smoke generator. Insanely loud. It completely drowned out the onboard sound effects. Speaking of the sound effects, the volume was supposed to be adjustable but it wasn't.
Finally, there was pairing the thing when powering it up. Some combination of flashing lights. It would take at least half a dozen attempts to pair, which involved switching the handet on and off again. Which was a pain as mentioned above.
I did buy the Wifi/camera add-on, but never got around to trying to install it. I gave up on the model after all the above issues. I do seem to remember complaints on the forum that that didn't work properly either 😛