A Bounder is probably a step up from the four previously named, but it's still near the bottom of the Fleetwood line.
This is always a gnarly discussion, cause some folks always take offense and think you are calling their rig "crap". I like to warn newbies if they have selected a bottom tier brand, just so they know they should not expect the very best in materials or workmanship. Most will probably be fine with that, but once in awhile somebody says "Whoa! The salesman told me this is the best there is!". And in a used rig over 6-8 years old, the price difference between the bottom and the mid or top models often isn't that great.
In RVs, the Chevy vs Cadillac differences are often more than just amenities. The lower end models typically cut a lot of corners, usually in areas that are not readily visible. Could be any or all of a bunch of little things, like quality of flooring and upholstery, sound-proofing, or the care with which wiring and plumbing are installed. Smaller tires on the chassis, cheap grade hardware, etc. etc.