A way to get from there to downtown after midnight that does not include:
1) A car (this includes a place to park it downtown, at your residence, and the pass to get the toll discount)
2) Getting yelled at by cabbies
3) A five mile detour through the absolute worst parts of Eastie, Chelsea, Everett and Somerville (which also warrants a car, because no one in their right mind would walk through the tank farms after midnight, and I believe Beacham Street eats bicycles)
4) A boat
I looked for a long time at buying property over there. Almost did when a cute rowhouse came on the market for $140K a block away from the waterfront. The few restaurants that are there are also rocking, and the architecture is great. But once the T stops you basically can't get anywhere without a car.