My wife and I have enjoyed it. There are better shows, but it's fun. I personally wouldn't buy it. There are places online where you can watch shows though. Maybe Dollhouse is online somewhere.
Now if you want a really cool show to watch, check out Leverage. Season 2 just stated, but all of season 1 and the already aired episodes of season 2 are available to watch instantly on Netflix. I like the show so much that after watching a couple episodes, I just went out and bought season 1. To me, the show feels like a cross between Mission Impossible and The A-Team. It's a team of former (somewhat) criminals and con-artists that are led by a former insurance fraud investigator. They fight injustice to help the oppressed. It is often referred to as a modern take on Robinhood.