Add spaces: Anddon'tworry,youcanunsubscribeeasilyatanytime.

Answer: And don't worry, you can unsubscribe easily at any time.

Add spaces: We'restilltestingitout,writingupinstructionsandsoforth,butbynextweek(maybesooner?),wefullyexpecttohaveallourducklingsinneatrowsandreadytogoforfullrelease.

Answer: We're still testing it out, writing up instructions and so forth, but by next week (maybe sooner?), we fully expect to have all our ducklings in neat rows and ready to go for full release.

Add spaces: Nearbytheportyou'llfindbeachesfullofrestaurants,barsandbestclubsinBarcelona,themostcharacteristicplacesofthenightlifeofthecity.

Answer:
Nearby the port you'll find beaches full of restaurants, bars and best clubs in Barcelona, the most characteristic places of the nightlife of the city.