The Museum London is well located and the main gallery has a beautiful view of the Thames river. Staff were extremely polite and helpful. The only quirk about this venue is that they hold the liquor license, so all alcohol must be purchased through the Museum at their pricing.
The venue is own by the city of London, so don't try to book an event on a holiday.

This is a beautiful, unique venue! We used the Community Gallery and our guests enjoyed the sunset over the Thames out the window over the course of the evening - magical!