I have ecu editor, but no personal experience with auto tune.
Auto tune/data logging is more accurate than a dyno tune when done correctly.
You can plug in a power commander yourself, it's very simple.
Then, download a base map from their website. That's all any dealer can do, unless they have a dyno.
With certain base maps(the one designed for your exhaust may not be the best one for your individual bike), you may/may not notice any improvement in how the bike feels, idle, throttle response, ect.
I'de spend the money on Ecu Editor, and a Woolrich Racing datalogger and wideband O2 sensor.
Or, spend it on a road trip to someone who dyno tunes with Ecu Editor.
With a tuner using Ecu editor there are no parts or equipment to buy. Where as if you want to have a dyno tune with a Power Commander you have to buy it.
Ecu Editor can also do many things that Power Commander cannot.