I purchased one of these from paradise arcade as well. It's worked well for me for everything I've used it for. The kids have hammered on it pretty hard playing golden tee and bowling. If it can stand up to a 3 and 9 year old's pounding so far, I'm pretty confident about it's durability.
Be ready though...those led's are BRIGHT. My mobo constantly runs power to the ps2 port, and this sucker lights up the room it's in. The switches are for the normal mouse buttons, and they ALSO change the color to red on the led.
I can also vouch for Paradise Arcade as a vendor, really went above and beyond for me, including ball-tops for joysticks that I ordered that they thought would go better with the buttons I ordered, and they were right. And those little chocolate macadamia things are killer.