I came across the www.ddos.com website from spamhaus website who had been using their iSecure unit. From the video demo it seems impressive, but I wonder how effective the device is on large scale dDos attacks.

We got hit hard with dDos spam but managed to stay on. 3500 rejected emails through dns list and 40k delivered messages in one day.

any one using the unit effectively or other recommended means to block dDos ?