I recently dropped all the SW books I was pulling each month - Legacy, Dark Times and Rebellion. I thought they sucked. Never read KOTR, not really interested in that time period.
I loved the Clone Wars / Republic stuff, though.
I was not initially interested in this time period either, but I gave the book a try and was hooked in the first few issues. Very good storyline IMO - much better than some of the KOTOR mini-series books from a few years back. The new crossover will go through all four monthly titles, which should make for a pretty amazing story, and it starts this month!