It was a great investment if you bought on the few days it was around 20 cents and then sold when it got to 30+ cents, but for the 90% of those who were buying when it looked like it was moving up, it's a bad investment.
A few people made money with Madoff too, but it hardly made it a good investment. ;-)
If you shorted over the years I've been warning about its massive overvaluation, you'd be a millionaire by now.
It's still overvalued, but now it's impossible to short enough to make any real money.