I'm in the minority in that I really enjoyed Legacy of the Force. It wasn't perfect, and there are things I didn't care for, but overall I thought it was an enjoyable story about the rise and fall of Darth Caedus (Jacen Solo). A few problems that immediately spring to mind have to do with the finale: the last book was too short and pushed the Galactic Civil War into the background, and it felt rushed to have Jaina be the one to take down Caedus, when it really should have been Ben. I always felt he was the Legacy in the series' title, but instead, the title was about... nothing.
And I'm liking Fate of the Jedi, even if I was sick of young Jedi going crazy by the 3rd book. Abeloth is a cool threat and the Lost Tribe are an interesting twist on the concept.
Now, Millennium Falcon I didn't care for at all, and same with Crosscurrent (although I may give the latter another chance...).
I just got done reading Crosscurrent and loved it, so I would reccommend going back and re-reading it and giving it a second try.