I've owned both as well, and they really are extremely different cars (aside from the 2 door RWD config). I had the 3.8L Track model so from a suspension standpoint, although the cornering was pretty darn good (for a BIG grand touring sporty car), the ride was so damn rough. The FR-S/BRZ can be a little rough at times, but it's a different feeling. The twins feel more planted and make you absorb the road, sometimes being a little harsh. But the Genesis snapped over bumps, to the point where it felt like your spine was going to be damaged and/or the suspension.
I agree with a previous poster, that said it does feel more mature. But that's because you get a near luxury cruiser that fends itself against the likes of the G37. It's a car that (loaded like mine was) got many complements even from the boring E-Class driving Merc crowd.
The twins, a little less so. Purpose built, no identity crisis, no frills sports car. Some may look at it and because of the badges (Scion, Toyota, Subaru), and not throw it in the upper tiers of manufacturers (thus giving it a "younger guys car"). Fine by me. Although I've had more people who don't know much about cars, think that I bought a much more expensive car than my Genesis Coupe. When I tell them that it was 2/3 the price, they were shocked. Of course I had to justify that it was still a better car IMO.
As for quality, and driving? Again both are/have gone through their growing pains. I had a 2010 Gen Coupe and there were TONS of TSB's, and little nit picking items for everyone to complain about (maybe none as big as the twins CEL issue, but still). The 2011 improved on the 2010 and the 2012 improved on the 2011, etc. The same will happen here, we just have to give it time. Having said that, I would never say that the Hyundai Gen Coupe was poorly made at all. It was a better made car than when I bought my G35 Coupe brand new back in 2004. Again, another car that suffered from its growing pains.
The Genesis had fairly decent power, great ergonomics (interior), okay for a 1st year car reliability, but it IS a grand touring car and not a canyon carver. Really depends on what you are looking for.
In the end, I do prefer the BRZ over the Genesis for more than one or two items. It's a sum of everything that I wanted in a car and no longer wanted in my previous cars. Lighter weight, better MPG, more tossable, smaller (both exterior AND interior).
Basically I wanted nicely fitted glove, rather than a comfy pair of mittens.
And that's all I have to say about that!
