I really enjoy playing these reeds, the response is excellent and they sound great. There is a subtle difference to the sounds between these and the cane reeds, so subtle that only I can hear it and I actually like the sound of these.
They play perfectly from first thing in the morning, no warming up. Also, they last for around 20 times as long as cane reeds.
I have never compared them to other brands of synthetic reeds as I like these and have never had a reason to try anything else.