Folks are snapping up Cruzes,
From Autoblog.com:
Over 1.5 million deliveries – admittedly 46 percent to rental fleets, 12 percent to company car fleets and 42 percent as private purchases
Nearly 60 percent of sales to fleet and rentals? Just 42 percent of sales to the general public? Sounds like the only people snapping them up are the rental companies, which will put them on the used car market in a couple years and drive the value down. Those type of low profit sales part of what got GM in trouble in the first place.
Being a darling of rentals and fleets isn't something to get excited about, and that's clearly where the bulk of the Cruze sales are going.
Other companies have done the "Love it or return it" promotion in the past to mixed success. It's simply a marketing tool to attempt to drive people into the showrooms. GM wants to increase their share price (which is currently very, very poor) and is doing whatever it takes to try to boost private party sales in order to pull their stock price up. It's an act of desperation rather than product confidence.