The Infinity is a comfortable ship with a relaxing atmosphere. We didn't experience the status of the ship as being in need of an overhaul (as some other reviewers thought).
The crossing of the canal was a bit of a disappointment. Good views of the proceedings were hard to get because of big masses (which of course was to be expected). Moreover the activities are that slow that it is not as impressive as expected. This experience was intensivied by the fact that we were very tired because of it had been impossible to sleep the night before due to very poor pary planning (see below).
Dining with open seating worked wonderful: we never had to wait.
Staterooms are pretty spacious and well equipped, with a modern feeling to it.
Be aware that in the Grand Foyer sometimes very loud music is played untill after midnight, which makes staterooms nearby (specially on deck 6) less attractive.
Interesting town explored independently. Took a taxi from and to the ship (outside port area $10 one way).
Visit Antiqua on your own.
Just took the bus to town and explored independently.