It's hard to quantify my opinions into numbers, so let me put it like this: I've owned 20 cars on many different tyres, and the Efficient Grip Performance 2s are, by some margin, the best touring tyres I've ever driven on. I have pushed them reasonably hard in the dry, and they showed no signs of even beginning to understeer, or oversteer in corners with the throttle down, which is important in an older rear wheel drive car like mine. Same performance in the wet. It is worth mentioning that my Mercedes 190 is over 30 years old, and while it is a good car to begin with, these tyres have transformed the driving and really brought it up to date. The handling is absolutely spot-on. The steering is responsive and it makes it a joy to throw the car through bends, and it really delivers the confidence if I need to manoeuvre around a dawdler.
As for comfort, feedback from the road is good, but not super super informative, which is how it should be really. I want to know the bumps are there, but not feel every line of tarmac. If you want that, buy some Pilot Sports. The car rides over bumps very well, and doesn't crash or jolt at all, which is impressive, again given the age of the car. So many older luxury cars can be ruined by the wrong choice of tyre, but these fit the bill perfectly. At motorway speeds, you can hear them, but it's no worse than other tyres of this bracket (Primacy 4 etc). They also track excellently and stably at high speeds.
For economy-wise, they offered a bit of an improvement in fuel economy over the previous, admittedly cheap tyres. One thing the EGP2 boasts about quite confidently is that it will last 20% longer than the next best tyre, and they almost certainly mean the Michelin Primacy 4, the other tyre I was considering, and which is well-known for being able to last 20,000+ miles. I've done 5000 miles, and the EGP2s don't even look like they've been used at all. It's possible they well last into Primacy 4 territory and beyond, I'll have to see. It was still a hard decision between the two tyres, but the one thing that clinched it for the Goodyears was the price. In my size on MyTyres, they were about £15 a corner cheaper than the Primacy 4 (£65 a tyre, if I remember right).
To be honest, unless you were looking for a high performance or track tyre, I don't know why you'd fit anything else to your car.