This is really low cost compared to similar arms from Kinova or even Franka Emika.
The specs unfortunately are silent on the stuff that's important nowadays in modern applications that involve Reinforcement Learning in the control loop. Stuff such as torque/force sensors in the joints.
Is the kinematic chain compliant is also missing, 280W is quite some power, can do some harm.
Also I wonder if this max 750mm/s toolpath velocity is valid with max payload (1.25 kg). Usually one needs much bigger robots to move mass that fast (e.g. ABB IRB-1400, 5 kg payload, 2 m/s, but this robot weighs 225kg).