Ericsons are generally very well built boats, many have gone to sea with them. As can be expected with a "production boat" many have upgraded/moderized the ports
, nav systems, etc. but the structures are very sound.
I own an E38 and even though its used for weekends and coastal cruising I can tell you it is very robust, even in heavy sea, high winds, etc. there is basically no hull
flex, creaking, leaking, nothing.
The shoal draft version point just fine, its a bit tender
so sail area must be kept conservative. Mine is a shoal draft model with an aftermarket "Mars Keel" bulb added on and it is MUCH, MUCH stiffer.
If you are interested in Ericsons the best site is EricsonYachts.org: The Starting Point on Ericson Yachts!
Lots of owners, info, etc. you have to register but its free, and worth it.
I am considering selling my E38, most every major system is recent, contact me backchannel if interested.