Despite Goldman Sachs' label as a "conviction buy," solar panel maker SolarCity remains a hard stock to value, but the company could prove valuable for select consumers, CNBC's Jim Cramer said Monday.
The upgrade to "conviction buy" from Goldman left Cramer "flabbergasted," he said.
"At the same time, it is really hard to figure out what [SolarCity] is worth," Cramer said on "Squawk on the Street." "But Goldman has said don't worry about it. It is a terrific economic leverage play. I'm kind of flabbergasted."