Somewhat oddly I ended up staying at the Gilded Lily while in Boston for business. While I would not necessarily recommend it of this (there are many accommodations closer to downtown Boston), it is a gorgeous B&B with spacious rooms, en suite bathrooms and kitchens (shared one per two rooms). It is located in South End, which is a really nice residential neighbourhood close-ish to all the action - if you're a walker that is. Via public transit or a car/cab it takes no time at all to get there.
I would absolutely recommend the Gilded Lily for holidaymakers - particularly families as you can connect two rooms via the kitchen. A small thing to note - you will likely not meet the owners unless you go looking for them in their office, which is round the back of the building. Not a problem for me at all, especially as they provide you with all the info you need in advance, but worth being aware of if you like personalised service. It is also not the cheapest place in the world, but visitors to Boston seem to generally be hamstrung by a $200 per night minimum for most accommodation, so with that in mind it is a good deal - particularly considering what you get!More