Absolutely excellent. I did a 9 night on Lammerlaw last November and although it was more luxurious than I needed (plates under the soup bowls) it made for an excellent experience.
The two diver guides George (Ecuadorian) and Robert (English) were observant, good at finding things and safety conscious while still treating people as responsible adults.
And best of all we had great diving, whale sharks, hammerheads , rays the lot. The panga drivers were first class, nobody ever needed the safety sasuage as they were always there.
The boat has big staterooms, excellent food and was very stable, we might have been lucky with the weather but despite going all the way up to Woolf and Darwin I was never in the least uncomfortable.
There was a mix up with some folks luggage on the way back (bags going to Quito that should have offloaded at Guaquil(?)) but having watched the care with which it was sorted as we disembarked the boat I suspect that might have been an airline stuff up.
So I would go with Lammerlaw again in an instant.
Alison