One of the reasons we bought our trailer is the spacious rear bath with plenty of storage. But, it depends on what size trailer you are looking to purchase. We had a walk through bathroom in our previous trailer, and it wasn't a problem. But, our corner shower in our Winnebago is roomier as well as space around the toilet.
You will have to look at different trailers and see what appeals. Then, look for comments or opinions about specific trailers here on the forums. Of course, everyone, including me, will tell you how happy they are with their trailer! But happiness is really related to how you use a trailer i.e. short or long trips, fair or foul weather camper, inside or outside lifestyle, etc.
Good luck on your search.
