I think enjoyment of the Revan novel would be entirely dependent on playing both games, yeah.
I don't remember the other TOR novels very well but I think I found them all pretty middling. Not great, not terrible.
I'm getting to the end of book 6 of the Fate of the Jedi series, Vortex. I really love this series! It's just FUN. It doesn't have any of the bleakness or darkness of NJO or LOTF. It's got huge big threats but it's never a downer. This is the pinnacle of Luke as a character, joking with Ben, dealing with an entire Lost Tribe of Sith, not hesitating to kill them in combat, using all sorts of crazy weird Force tricks he's learned over the years... What a great character!
I don't remember the other TOR novels very well but I think I found them all pretty middling. Not great, not terrible.
I'm getting to the end of book 6 of the Fate of the Jedi series, Vortex. I really love this series! It's just FUN. It doesn't have any of the bleakness or darkness of NJO or LOTF. It's got huge big threats but it's never a downer. This is the pinnacle of Luke as a character, joking with Ben, dealing with an entire Lost Tribe of Sith, not hesitating to kill them in combat, using all sorts of crazy weird Force tricks he's learned over the years... What a great character!

Kinda like how I love ROTS, but it's definitely not fun. It's a tragedy.
Then again, I also thought Darksaber was decent, and I almost never see anything positive said about it. Honestly, the only bad Star Wars books I've read was Traitor, the NJO Book focused on Jacen Solo. Easily the worst SW book. There was also the Dark Nest Trilogy books, which I consider the worst event book/ongoing story in the old EU, but even then they weren't terrible (although all of the big changes from the book were basically gone by the next one, which was a good thing).