Currently playing post-threshold Plant. Being an ent is a pretty good life.
Pros:
-No more worrying about food and water
-Very Strong
-Picks up Very Fast Healer
-Bark gives some damage resist
-No more diseases
-Up to 3x vine lashes in unarmed combat. Beat your enemies down like you’re the Whomping Willow.
-Ropes forever (meh)
Cons:
-Moves slowly.
-Deformed. You’re not pretty like the elves.
-Morale penalties for wearing anything that covers head or feet.
-Saprophage. Post-thresh you won’t need to eat anything, but Saprophage will make most “non-aged” foods unpleasant for you. Say goodbye to morale bonuses from cooking.
-You effectively lose the ability to sleep on anything but diggable terrain ie: dirt, grass, mounds.
-Sunlight Dependent. I managed to avoid it with robust genetics, purifier, and luck.
-You move slowly. Depending on how many ranks of Ponderous you mutate, you may move very slowly.
Very Fast Healer in conjunction with post-thresh traits like Chloromorphosis, Rooter, and Leaves make long voyages and scavenging trips very low maintenance. Plants don’t have to worry about bringing food and water. If Old Man Willow becomes grievously injured in a fight, crash, or explosion, he can find some tasty dirt to sink his roots into and sleep it off in a few hours instead of having to slink back to home base. The downside is no more of those sweet, sweet frosted toast 'ems.
You can still armor your head and feet for lab dives and other dangerous excursions, but Plants don’t like jamming their roots and flowers into human clothes. XL/mutant-friendly gear doesn’t prevent this. Hoods on non-head clothing items don’t seem to trigger this currently. Old Man Willow can still wear RM-13 Combat Armor for a while, but he’ll be terribly unhappy about it, and you won’t get the benefits of having roots while they’re roots in boots.
The sleep issue is pretty inconsequential. As a Plant you probably wouldn’t want to sleep indoors, but it’s worth mentioning that you lose the ability to do so. This led me to convert my vehicle bed into a vehicle “planter” by completely removing the roof, bed, and frame that used to be there. I like the log messages and RP here of sleeping on soil.
I am such a good tree.