Shadowing someones adwords?

[Crush]

Is there any tool out there that will shadow a competitors adwords reasonably? Only seen spyfu but not too accurate IMO.

[aruns]

There are many tools, but given how they generate their data they cannot be too accurate.

I was exploring ways to stop others from spying on me, then when I compared the tools data with my campaigns they were so off, that I now believe that anyone who uses these tools might more often than not be wasting their time & money.

Does anyone disagree? Would like to hear your thoughts.

[koncept]

aruns, I agree. I researched my own site using these tools and found them to be very inacurate. Most of the keywords they reported are ones that I have never bid on. So if someone wants to use these to figure out what I bid on that is fine with me.

As for acurate tools, I haven't found them.