Why Play A Ghoran?

[Magelyte]

IMO, the main reason to play a ghoran is the seed ability. It can function as a contingent resurrection, allowing your character to go on suicide missions without needing to worry about being resurrected, as well as letting you remove negative conditions as long as you have 2d6 days to wait for your copy to grow. (The negative level you get for using seed applies to only the original ghoran, not the copy.)
The ability to swap around your skill ranks is also useful, and if you don’t think it’ll be very useful, you can take the alternate racial trait that let’s you reselect your combat feats instead.

The weaknesses ghoran has are also pretty minor, it’s trivial to get some sunlight each day unless you spend a lot of time underground or on a plane without it, and delicious gives you a penalty on escaping grapples from creatures with grab on their bite attacks, which probably won’t come up often.

(Although something to keep in mind if you’re going to use seed a lot is that each incarnation of a ghoran has a slightly different personality, which causes them to have trouble forming long lasting relationships with the longer lived races.)