I had the AEM one - the one that Paul is selling actually
I switched it out to the HKS AFK which monitors both channels & also monitors knock. The only drawback is the price, its near enough £1k to set it up on dual channel.
AEM fitted
HKS fitted
I want one
Its near impossible getting something for my name though
I nearly bought R13 GTR a few weeks ago but decided to wait untill payday, by the time I got paid it had gone