Hehe! you will find out quite soon that they are relatively ornery and easily stressed. Well not TOO easily stressed... they just let you know they are stressed in a very loud, timely manner. The converse being coniferous trees... SUUUUPER “passive-agressive”
It’s.....sensitive.. Serissas will:
Drop leaves when the consistency is altered to areas of it’s active photosynthesis. They have A
LOT of small leaves, feeding particular branching systems all the way down to those particular roots. In other words, they don’t enjoy changes in position. (Rotating or moving around)
Drop leaves if watered too frequently. They, however are quite thirsty individuals. so you two will develop a “dance routine” to compensate.
Drop leaves/droop SPEEDILY when too dry.

I believe it is the contrast between these last two that lends to the “pains-in-the-butt”-type problems. As long as you know these things, there shouldn’t be any problems.
So i guess serissas aren’t really pains, per say. They just have strict and rigid guidelines by which they live (or do not live) their lives. That doesn’t sound too bad.
Also, do you have an artificial lights, as well? I’d STRONGLY recommend that investment as well as considering “summering” outdoors. (If able)
p.s. your serissa is nicer than mine... mine just started out on it’s “Tiny-Tree” adventure earlier in life. So again, nice trees!