The book was praised by S. J. Watson as "Brilliantly written and totally gripping...It's such a thrill to read a book as deliciously dark and richly evocative as Tideline. From the first page to its shocking finale it draws you into its world and won't let go". It was also praised by Marie Claire and Laura Wilson in The Guardian who describedthe book as a "creepy, well-written debut", praising the portrayal of Sonia but describing the portrayal of Jez as less successful. The book was also featured on the Richard & Judy bookclub.