Its the Mechanism of Benzos, they slow down signals going into and out of your brain & body.. Its great for the body because it becomes numb, relaxed and chill. But its not that great mentally because it makes you dull mentally, bored, and slow (sure helps for anxious people due to their racing thoughts and etc.. but not in any euphoric means)

So let’s say the most euphoric feelings from Opiates are coming from these happy receptors in your brain (opioid receptors + dopamine receptors) are activated, therefore you’re feeling happy and all.. Then you dose benzo, now the signals are slowing down therefore you’re no longer feeling that much happy due to the happy receptors being slow st sending signals to your brain.. No more happy signals activity are involved due to Benzos overpowering everything. THEREFORE: No, doesn’t worth the risk nor is a good experience unless you actually want to kill physical pain.