Actually, your specifications fit the middle of the quality ladder, not the bottom. Web suspensions can mean many different things, and not all of them are bad. 8 way hand-tied springs are not particularly known for their longevity. It's more a matter of "feel" plus the fact that they cost much more than other spring systems. High density foam is the standard in the industry for mid-priced sofas. There are some brand name high density foams such as Ultracel or Qualux which are a bit more pricy and tend to hold up better over extended periods of time, but a standard high density foam cushion with a dacron polyester wrap should hold up for many years.

Thanks for the informative reply. Sounds like the use of high density foam isn't necessarily such a bad thing, and may even have some advantages over the hand-tied spring method. The Albert feels great in the store. As long it lasts at least 7 or 8 years I'll be happy. Sounds like the foam doesn't lose it's shape that quickly so I should be good to go then.

Actually the foam doesn't have anything to do with the 8 way hand-tied springs. The "unidirectional web suspension" is being used as a substitute for the springs. There are many different types of webbing. Some will be as durable or more durable than 8 way hand-tied. The big advantage of the 8 way hand-tied is additional comfort. If you find the webbing to be comfortable enough, don't worry about it.

Thanks for clarifying. I happened to try the Maxwell sofa at Restoration Hardware today, which has the 8 way hand-tied springs, and it did seem a bit more comfortable, but it was also noticeably deeper which might have accounted for some of the perceived difference in comfort. I'm 6'4" and I still felt like I just sank into the thing.

Web suspension sounds like Pirelli bands. Think industrial strength rubber bands. :) Webbing is not uncommon on sofas with thin seat decks because there is no room for coil springs.

As for cushion density, it should have a numerical rating. Ensure it is a minimum of 1.8.