Yep, they quit EA113 development years ago. They're still responsive and helpful to queries regarding older cars though.
Don't forget with the Revo map it can be 'custom' if you so choose, by way of the Boost, Fuel and Timing settings if you have a standard SPS switch, or via the stalk if you have SPS Pro (PolarFIS copy). It's worth also noting Revo put 1000s of miles of global testing into all of their maps before they are unleashed onto the public.
I'm not trying to come across as a fan boy, just extra info for those not familiar with the company. They haven't always got things right (their R32 and 1.8T maps weren't great) but with the MK5 and newer, they're pretty good. Not the best, not the worst.
If you're local to R-Tech, you can't go wrong and you get switchable maps and improved traction control mapping, which not many other tuners offer.
One thing I will say about Stage 2+ vs Stage 1 is 2+ always felt a bit fragile to me. Far too close to the engine and turbo's limits for comfort, certainly in daily use at least. 2+ can also belch out a shed load of black smoke, which is some of your mpg range being fired straight down the exhaust
Stage 1 feels like it's unburstable like the factory map.
2 more things to consider with the Revo map, if you ever disconnect the battery, you will need an SPS to put it back into 'performance' mode. The map it loads into memory if you yank the battery is bloody awful. Over rich, slow and unresponsive. And the second thing, if you have an ED30, is the 'stock mode' map is actually an S3 base map. In stock mode on my stage 1, I've pulled enough MAF flow for 280hp, so for me, stock mode vs performance mode feels the same