Welcome to the wonderful world of small, lightweight fiberglass trailers!
You are wise to seek ways to get firsthand knowledge before you buy. You might consider visiting a fiberglass egg rally
. Then you could see a variety of makes and models, sizes and ages, and talk to their owners. Some have a scheduled "open house" time, but visitors are usually welcome even if not.
The "More" tab at the top links to the 2016 Rally
Map. Most have contact information for event coordinators, who could advise you about arranging a visit.
Meantime, keep scouring the ads and follow up on any that interest you.