I haven't read a wide plethora of fiction so I might have lower standards, but I enjoyed/am enjoying them (currently half way through the 3rd, skipped the 1st due to having watched the film, may not return to it). I've read a significant amount of the sequences and didn't feel like the books interact negatively with rationality ideas; the heroine is fairly lucid and has fewer than average dogmas, so isn't annoying in that respect.