NAT, that article in PBO was about my 9m Catalac, which I owned for 21 years. Now sadly sold due to a major life upheavel.
Catalacs are good sea boats. They are good for living in (on a cost /space comparison. They are great for kids
due to their design.
They can be surprisingly fast in the right conditions.
They are very susceptible to weight, and cruising weight really affects them
They are poor to windward - unless you can keep them light - but even then a short steep sea is time to turn on the engine
The 9m is a better boat than the 8m
The 10m is a more modern internal design and sails
much better. If I recall
correctly, the 10m won its class in its first ARC
The 12 m is rare (although most are in USA) but a good one is a really good boat.
I am very happy to discuss any aspect that you would like further info about.