At the risk of sounding like an Aqualung/Fusion apologist, I think that for this thread, it is important to note there is a huge difference between the Fusion Drycore and the Fusion Aircore.
The Drycore suits had the garbage bag sound and feel, were difficult to get on and prone to puncture.
The Aircore are made of a gore-tex like material that is more robust, has a different feel, no garbage bag sound, and a bit less fuss to put on. It is much less susceptible to puncture damage.
It is also important to note that the Fusion suit cores are cut oversize....the original design was based on an idea to allow flexibility in sizing. To my knowledge the suit was born from the struggle to accommodate divers learning to dive in the cold waters of Canada...having enough of a particular size for all participating divers was and could be a problem...Whites solved the issue of putting a diver in a suit too big or uncomfortably small by making a the core of the suit big enough within each labeled size to fit a range of body sizes/types and let the flexible outer skin adapt the entire package to be streamlined to the individual.
The suits are not perfect, and they are not for everyone...but that is true for most any piece of equipment. They are very good for anyone who's body morphology fluctuates as a standard drysuit will become too spacious if one loses some weight, and will be too restrictive if one gains weight. In both cases, the diver would be dealing with an I’ll fitting suit and looking to purchase something that fits. The Fusion suits fill a particular niche of the diving community. Like I said, they are not perfect nor are they for everyone.
I agree with comments on Aqualung's lack of customer service with regards to addressing issues with both the the Drycore and the Aircore. While they did, and will, replace Airecore model cores that were made in Mexico due to seam issues, they did this rather silently for those who experienced issues instead of conducting a recall. They also did not pull stock back from their dealer networks and those affected suits could still potential be sold today by a shop with overstock.
-Z