There's a class of product I've called the 87% product for as long as I can remember. You know the kind of product I mean. It has features, and they function, and somewhere in there are benefits for the customer...
But the product doesn't sell well. And the engineers who designed it can't figure out why, so they blame the lousy marketing and bad sales effort.
The real reason might just be that it isn't designed expressly for the market it serves. It's only 87% of the product it should be, but it just misses the mark.