Hi Ray
Our Avondale Landranger has an L-shaped layout. We previously had a side-by=side layout.
We don't have any trouble fitting the cushions in to make up the bed. After experimenting we tend to use the seat backs at the bottom of the bed - our feet don't notice the joins!!
We like the L layout for a number of reasons.
(1) The big long window is good for views - we aim to have that end facing the view sometimes pushing the van in that way.
(2) It makes the caravan seem more spacious. Max our collies has his day bed under the big window. We'd be always tripping over him in a narrower space.
(3) There is plenty of room for us both to put ouf feet up on the legs of the L and watch the TV.
On the downside we had some problems with bed. The space between the settee and far wall which had the runners for the bed slats is is obviously widerthan in a parallel layout and (oddly) got wider further away from the front of the van. The slats, therefore, tended to come off the runners, even breaking the plastic runner on one occasion.
I'm a big (heavy) bloke and so I added 2 extra plywood legs to the underside of the slats. They are hinged and fold up when the slats are slid away during the day. These legs run parallel to the sides of the caravan for the length of the pull out section and are spaced equidistantly across the "gap". These legs are much better than the pathetic centre leg that came with the 'van. Much improved bed stability.
L layout for us every time. I would, however, say that when eating around the big table if there more than 3 that the side-by-side layout has advantages. We now, however, are usually just the 2 of us as the kids have flown the nest.
Happy 'vanning
Tim