i have been to ischia a few times now and unlike some of the other reviewers on here, have yet to find something to whinge about.
our most recent visit was as part of a group of 6. the decor hasn't changed much since the building housed siena's all those years. they have added some 1960's style photos of their namesake island, but it's a big, airy room, suited to the cuisine it serves.
the offering is similar to siena's - good, hearty, bold italian staples and verygoodpizzas. it is better that its predesessor though.
the service is always friendly, with several staff being "genuinely" italian.
someone mentioned that it is a bit pricey. i haven't found it to be anything out of the ordinary for beaufort street price-wise and the pastas are particularlygoodvalue.
i shared a bruschetta for my entree and launched into the linguine puttanesca for main. it was rustic, loud and when topped with extra chili oil and parmesan, just heavenly. $22 is not what i would call expensive.
corkage is a little steep at $8 per bottle, but that is a small inconvenience. my score is probably a 3 1/2, but i am not sure how to do that so will err on the side of generosity with a 4.