Having read about the new Woburn WF on this site, I went yesterday. No big deal, at least for me. I normally go to the Beford one, and I found Woburn to be smaller, and have nothing more in the way of items that mattered to me. I don't see this store as some sort of new model unless the new model is based on squeezing into less square footage.
They do have more prepared foods, and they have a coffee bar. So if you're there for those items it might be worth the trip. But if you go there for groceries, especially specialty items, it is no different than the others. The aisles are more crowded, the checkout is a ways away from the doors requiring more walking - not a big deal.
The really bad stuff is the same as the other places: The sushi is still burb crap made by chinatown refugees. Gus's pickles are still 2 days too old to be sold at Gus's (or anywhere else with any repute).
The fish and cheese were the same as Bedford, as were the selection of vegetables and fruits.
And then to top it off, the two products I can't live without and absolutely need to go there for were absent. I had to go by the Bedford store on the way home to pick them up. They didn't have salted Lurpak butter (for the table), and they didn't have DuFour puff pastry sheets.