Another reviewer mentioned the puttanesca, which was indeed fantastic - but I'll take mine without the anchovies, thanks. I can somehow never get away from the Vesuvio pizza, though. It's very similar to the Diavola at Cibo, with one major difference - I'm never full when I leave Cibo. I've always got a couple slices left over from Gasper's, perfect for breakfast or lunch the next day (I'm a heathen, sue me).
After recounting the few times I've been here, I've never had anything less than exceptional service, and the food is always great. It's never crowded, either - famous last words.