I do, and love it. I have the Roku HD|HR (HD|S is the newer model) box and the picture is quite good. I don't know how long Starz shows are delayed, if at all, but there are 5 episodes of Spartacus: Gods of the Arena (and Blood and Sand) ready and waiting, as are 1000 other Starz offerings alone.

It's good to have, but honestly, I don't use it all that much between the DVR and 2-discs-at-a-time plan. But if you get streaming-only, it's worth the $7.99/month. I'm paying $17.99/month for Blu-ray