I have hillacious, and a speedwork and "tough love". I also have an aerobic base builder. I LOVE my spinnervals.
Hillacious should be called Hellacious, but it's an AWESOME workout and only 55 minutes or so.
The speedwork one is really hard too and only 45-50 minutes. I love that I can get in a really tough quality workout in less than an hour.
Tough love is 3 hours. I have only done the first 90 minutes. Tgirl this one you should definitely get. It is hard too.
Coach Troy does lots of intervals and it makes all the workouts go by fast. I put it on with "no music" selected, then play some music as well.