Owners of the Hylas 42 have generally positive things to say about their boats. According to a discussion on the SailNet Community forum, one owner described the Hylas 42 as a "beautiful boat" with everything in great condition except for the teak decking in the cockpit, which they would either remove or replace.
Another owner on the Hylas Yacht Owners Association Forum described their 1985 Hylas 42 as an "incredible boat" that is "much admired" and often mistaken for a Swan or Baltic.
Some owners have discussed the unorthodox cockpit design of the Hylas 42, with one owner on the SailNet Community forum wondering how happy they would be with it long term. Another owner on the same forum suggested looking at the Hylas 44, which has a more conventional cockpit design.
However, another owner preferred the Hylas 42 over the 44 for several reasons, including its lower price, higher performance, and traditional straight settees in the salon area compared to the curved design in the 44.
Overall, it seems that owners of the Hylas 42 are very happy with their boats and appreciate their performance, design, and build quality.