I worked a startup that had decent tech, but a shit product. Wasn't focused enough to really solve clients' issues. Maybe alleviated some issues, but also introduced more. It was disliked by the people who actually had to use it. But our sales guy was really good at convincing those peoples' bosses that it would make the company more money.
It was a total top-down sales approach. Throw a bunch of buzzwords at the founder/CFO/boss, they force it on the people actually doing the work. I hated it, and it worked so well that fixing the product was never a priority. It was always new "features" to slap on more buzzwords to the sales pitch. I really think it could've been a good product, too!