I've been to La Tigella twice now and it doesn't disappoint! As an Italian I'm quite fussy about the quality of my Italian food when go to restaurants but it's always a good sign when the waiters are Italian and many of the other diners are Italian as well!
Great atmosphere, great service and most importantly great tasting authentic Italian food. Both times I have had the salty Tigella platter as a starter to share (with lots of cut Italian meat, cheese and sauces) plus a pasta dish as a main.
Minor complaint is that the pasta dishes could be bigger to make it better value for money, but 5 stars for the taste and quality!