Hi, I have sailed on a Lagoon 410 S2 quite a lot, short trips on the
Baltic Sea and long passages on the Atlantic coast and the
Mediterranean.
I would say that unless you are trying to go anywhere to windward direction when the
wind and the waves pick up, then the 410's sailing abilities are very good except in very light air.
In moderate wave conditions the motion and the waves slamming in between the hulls can get pretty loud, scary and uncomfortable and you hear lots of squeaky sounds, which is apparently normal. The construction is strong though, no worries about it breaking apart.
In 40+ knots of
wind and big waves, especially going to windward, you can sometimes feel like someone were hitting the bridgedeck with a sledgehammer from underneath. I have seen the
saloon table come loose from the floor from the waves slamming from beneath. Sleeping in cabins is difficult, with the waves slamming again to the angular shapes of the
hull, which are to accommodate the width of the sleeping bunks. So in big waves it can be more uncomfortable than the newer "gullwing" designs.
If the
boat has
Yanmar engines, it is worth checking the
engine mounts carefully and make sure that they are
Yanmar originals, not the Lagoon factory lookalikes! The original factory mounts break very easily and consequently the
saildrive main seal will break and begin to leak!
About design quirks.. Some things that come to mind, they are many little annoying things not related to sailing, but overall finishing quality issues that have occured on the
boat I have sailed on, for example:
1) the seat
cushions in the
saloon do not stay in place, they need some better attachment system
2) the
steering seat backrest needs some better thought (also the seat material should better be non
water absorbing instead of the original canvas)
3) with the boom out, the mainsheet rubs against the
cockpit bimini roof aft edge and eventually breaks it
4) due to the design of the
bimini roof, with some rain, the
cockpit is a very wet place, unless you have some useable side attatchments to the cockpit roof
5) the cockpit roof
stainless steel carcasse, where it is screwed o the roof, can begin to leak over time
6) cockpit floor drains (the sealant) can over time begin to leak
water into the aft cabins below, behind the walls of the
cabin and under the mattresses
7) the standing
headroom down below in the hulls is only about 185 cm (less than
Lagoon 380, which must have at least 190 cm or more)
8) on port tack with a lot of wind and rain, you are quite exposed at the
steering station. Same applies with the sun, there is no adequate shade from the sun when sitting at the steering bench. Ok this has to do with sailing a little bit
Nevertheless, overall the 410 is mostly a good and comfortable boat and the design quirks can be addressed to with a little thought and investment.