Depends on why you didn't like New Sun. Long Sun is a rather different beast.
I loved New Sun for the intricate writing and picaresque SF dying earth, time loops, meta-fiction, cosmology and so on; but Long Sun is written in a much flatter 'late Wolfe' style, is more straightforward and introspective, more of an extended meditation on religion (even false ones) & leadership & personal integrity.
You can like both, but I don't think I've seen many people claiming to like them equally. (And Short Sun is even less popular - it's just a bit too weird in delving into Wolfe's subtle fixation on insects/vampires and memory loss/personal identity, and you have to get through Long Sun first which is almost as different from Short Sun as Long Sun was from New Sun... I'm not sure if anyone really likes Short Sun.)
I loved New Sun for the intricate writing and picaresque SF dying earth, time loops, meta-fiction, cosmology and so on; but Long Sun is written in a much flatter 'late Wolfe' style, is more straightforward and introspective, more of an extended meditation on religion (even false ones) & leadership & personal integrity.
You can like both, but I don't think I've seen many people claiming to like them equally. (And Short Sun is even less popular - it's just a bit too weird in delving into Wolfe's subtle fixation on insects/vampires and memory loss/personal identity, and you have to get through Long Sun first which is almost as different from Short Sun as Long Sun was from New Sun... I'm not sure if anyone really likes Short Sun.)