Take's a small learning curve for some people.
thats an understatement.
If you dont know how a diesel works and how to use a computer then its not for you.
But if you have the drive and determination as well as patience to figure it out and take things slow, it will not let you down.
The edge is good but has had some issues with using communication and thus making the engine and gauge cluster do wierd things and eventually shutting the motor down. This means you have to remove it and send it back.
Dont worry edge has a great customer service, even if your 2 year warrenty is up they will sell you a new or refurbished one cheap.
The egdes built in gauges and shift on the fly is very nice.
The PPE standard is also very good too. But you will want a set of gauges to monitor things.
There really arent any other tuners to consider when it comes down to it.
If you are wondering what else to do a 4" downpipe(turbo) back exhaust will help out too.
An intake is not necessary, stock duramax intakes flow perfect up to 500hp and the filtration is unmatched.
A transgo Jr. will make sure your ally can hold the power the PPE throws at it and it is a cheap and easy to install mod.
hope this helps, have fun. Theres some great vendors on here too just shoot them a PM for prices.
:beer: