I realized that while I often look for out-of-town restaurant recommendations on tripadvisor before I travel I have failed to contribute any of my own for visitors to the Greater Boston area. So here goes.
Il Capriccio is not just my favorite local dining experience, it is one of the best restaurants I have visited anywhere. The food is consistently superb - perfectly prepared, nicely presented and without fail, thoroughly enjoyed! There are generally a number of new and interesting menu options as well as the favorites that regulars have come to expect (if not insist upon). The wine menu is also quite extensive.
While downtown Waltham will never be described as quaint, I have eaten at plenty of restaurants where the beautiful setting couldn't make up for the disappointing food and service. Walk through these doors and settle in for a memorable feast.
Perhaps what I like most about Il Capriccio is that the staff seems genuinely happy to be there, answer your questions and to attend to your desires. It really makes for an enjoyable evening out and I would encourage you to visit if you are in the area.