I enjoyed my time at a different Postino location, so I was definitely glad to see one open right across the street from campus. Like others have said, it definitely has a different vibe than the other locations. That's to be expected, and trying to cram a trendy & upscale winebar next door to a Subway and Panda Express wouldn't have succeeded so I'm glad to see that they are embracing the college town atmosphere.
You can expect the same stuff that any other Postino has: an eclectic array of bruschetta, a wide variety of alcohol, and decent daily specials. Would I make this an absolute go to for dinner dates? Maybe, but I'd much rather go to the other locations for that. Where the "Annex" succeeds is being an awesome lunch spot. $5 pitchers from 11am-5pm? Yes, please. The bruschetta plates can be split between two people for a not-too-filling lunch, so enjoy the Annex for what it is: a great place to mix it up for lunchtime, and a decent place for dinner.