The ability to get in and out the gal is much easier, the ability to park her close to another car becomes a reality, and when the doors are opened she appears as a true exotic.
This is truly some incredible engineering - both the former design as well as what I expect the new one is.
From my experience (insofar that the new operation of the door is similar to the previous design) is that there are some trade-offs. I would not agree that ingress/egress is easier with these doors and, in fact, I would say it was harder. With the OEM doors, once they are in a 90-degrees-to-the-body position, ingress/egress is great - perhaps mostly attributable to the cut-away roof section following the door. In contrast, the scissor doors (as can be seen from Shadowman's picture posted above) cause tall drivers to be nose-to-door-panel before lowering yourself into the seat. Like the stock GT, I suppose that you quickly develop a technique that works best for you. I likely did not spend enough time with the scissor doors but I found them a little inhibiting to the ingress/egress process – much to my surprise.
The scissor doors are obviously an advantage in parking situations as the door no longer needs the space for a 90-degree opening. This is the key advantage of the doors and, IMO, perhaps the only (albeit significant) advantage.
Beauty is in the eye of the beholder. While some people may factor the "look" of an opened scissor door into the buying equation, I can say that it doesn’t work for me. Perhaps it is the market where Hondas, Chryslers, Supras, etc. added the doors and in a way, "cheapened" the concept. There is no doubt that the level of engineering in the design and implementation of the GT hinge is well beyond what any others have achieved - but the function is obviously scissor doors.
Finally, despite the ultra-engineering of the hinge and mechanism, the door of the GT is very long and very heavy. It is a long and heavy lever on this fine design - and you are reminded of that each time the doors are in their fully-opened position. I always had the impression that a menacing 12-year old could cause some very significant damage to the doors if he was inclined to do so.
In summary, I don't want to take anything away from this wonderful new product. Rather, I think that buyers should take a moment or two to see and experience the product for themselves. There’s just no substitute for seeing, feeling, and operating. If it meets or exceeds your requirements and expectations, then go for it!