As far as durability and solidity, the Roland is a 9+, this machine is maybe a 3+ TOPS

Even at the retail price, it's a great machine with a focused range of use

I do enjoy this machine from Alesis

I used to have the Roland SPD-S, a very solid machine, so when I bought this, I thought perhaps it would be a little less solid, but still very good quality

It's too bad because if they put just a little more effort forth this could have been a nice machine for the price

, I would't recomend this product as it doesnt works properly even for a amateur musician.