I've had both. I now have Revo as APR ditched my tuner of choice and I wont have APR again.
....Yes, I think we both have the same tuner of choice and so I would stay with that tuner too.
However, for someone else I am of the opinion (without direct experience of APR) that the APR remap is worthy of serious consideration as an alternative.
It's a good point you bring up though about the importance of the tuner and not just the map software itself.
I'm no expert but I dont think Revo requires a "tuner" (not sure about APR)- you see SO many garages offering Revo maps these days, all you need is a laptop, a cable, Revo's software and some instructions that revo provide and any Thomas, Richard or Harold can be a Revo "tuner". You upload a base map and then tweak one of the 3 settings as per the instructions they provide - or if possible you can log it (not all places do - Revo @ GTI inters dont). Not really "tuning", more like reprogramming.
Seeing how many people offer this service, I doubt it requires any special training etc and you really dont even need to know anything about the engine, as troubleshooting is fairly basic and probably included in the instruction booklet.
If you want to get the best out of it though, your best going to a garage that knows a decent amount about the TFSI engine, especially as remapping highlights any weakness in the ignition & fuelling systems etc.
As Gaz suggested above if you really want the best out of it, with no constraints, a custom map is the way to go (and will be cheaper than a big brand).