At the risk of beating a dead burro I'll have a go at one aspect of this. Our 2000 17 footer came with fiberglass quality that was very "uneven" (flaws large and small).
To be specific: small spots of thin fiberglass, mostly in edges in the interior, evidence of hasty and sloppy repairs, panels which are less than smooth where they should be, etc.
One major aggravation has been that the two interior shells do not align properly where they are glassed together. If you like symmetry and value the look of proper assembly this could be something to aggravate many an owner.
On the other hand, structurally this has not been a problem, and as far as the misalignments are concerned I have chosen to change the curtains to simply hide the offending areas. I have a bit more to hide, but it is an effective and realistic solution, and it hides some of this embarassment from the eyes of visitors.
The exterior on mine needs work, and I have been fixing some minor spots and painting
them, but this is in preparation for an overall paint
job, so in the meantime I put up with the sloppy look.
That said, I'd rather learn how to fix this type of problem than deal with certain other shortcomings, which is why my wife and I are of the opinion that none of the other trailers out there would do a better job for us. We are extremely happy with how it fits and operates for us.
1) the wider body is a huge advantage in livability (most stickies are even wider, so I don't feel this is a significant towing disadvantage), 2) the double shell construction has obvious advantages, especially for the customizer, 3) the frame is unusually stout and the the unit tows beautifully, 4) the counterspace is huge, making us wonder whether any cooks were involved in designing some other units, 5) the bathroom is on the high end of size and usability, and finally 6) the bed is really large, so we invariably sleep well and don't feel cramped. As Roger has pointed out before, the interior design is really a main advantage of this trailer.
Nevertheless, the fiberglass quality is really inexcusable, and since the saner majority of FGRV owners probably don't wish to spend their evenings repairing things this state of affairs should be clear in the mind of a buyer of the Escondido Burro (but, admittedly I don't have that many other examples to go by).
Once that reality has been absorbed and accepted it could turn out very well, as it has for us.