I have two pedals atm:

1 road pedal : it's easy to clip in once you got a bit of experience and i believe the performance is maxed out

1 dual sided pedal : very useful if you do shorter rides as well to get some food or whatever since you can use normal shoes, flip flops in holidays, etc..

and you still have a cleat side for more serious rides + with mtb cleats you can manage to get shoes with cleats in which you can walk around not looking like an idiot .

Compared to the dual MTB sided pedals I think the performance is better on mine since the pedal is a bit bigger and therefor the power transfer should be better