I have been with Titan for a couple of years. Since the start I've watched my download speed steadily decrease from a whopping 3Mbit to around 1.5Mbit.

I only really do some light surfing now so I could just about put up with the 1.5 but then over Christmas it dropped suddenly to 0.4 which is as slow as a week in the jail.

I tried to contact their support department via email several times; I have yet to receive a reply. I then asked for a MAC code so I could migrate away and I'm still waiting for a reply to that too (well past the 5 day turnaround which they are required to adhere to by law).

They were a decent ISP with good support service to start with but I'd recommend that you avoid at all cost.