We really loved this tour. We had a private tour with just the 2 of us on our last day in Sri Lanka. Our guide (DC), was welcoming, knowledgeable and took us through the fort and interesting historical sites without overloading us with information - he also had props and photos to show us how things have changed over time, with interesting anecdotes added in. The pace was steady but kept moving and interesting. We learned loads about Colombo that we would have otherwise missed if we'd decided to do something else.
We particularly enjoyed learning about Colombo's varied history with an impartial and balanced perspective.
DC was an excellent guide (fluent English), everything was well organised by Ruvi. Well worth the money.