I'd say around 160+ is too much, a bit more would be fine as fine as long as it's plot focused and has romance as a subplot, if it's just romance or pwp then hell naur, I'm not wasting my time on a couple fighting and fucking, at most it should be 80 chps.
The most I've read is 400+ chps of 19 Days but they were pretty short and I love those 4 p......