smj is right - they do have a reputation for being rather tender and a number have capsized. Indeed, some were fitted with a football-shaped flotation device on the top of the mast!
That being said, they were well-built and are good performers - the designer
, J.R.(Rod) MacAlpine-Downey, designed some world-record breaking performance cats and the underbody design of these boats is still virtually state-of-the-art for performance-oriented cruising cats: relatively high Cp (prismatic co-effiicent), fine entry forward with modified u-shaped sections aft, upward-angled forward chines to increase bouyancy forward in extremis, relatively high bridgdeck clearance, forward trampoline, boards rather than keels, relatively low displacement
with a relatively high SA/D ratio, etc. If being used for daysails and weekend trips in good weather
, I would have no compunction about the stability; and of course you can (and should) always reef early and often!
Furthermore, while the interior is spartan and there is no standing headroom
in the saloon
, so what? You can stand in the head
and in the staterooms for getting dressed and there is plenty of sitting headroom
around the table. As a liveaboard
for extended periods, no. As a weekender, she should be a fun, fast, responsive boat with far better accomodation than most small monohulls.