First I must say I really hate how unity trusts will leave you if you take a break. When I go on vacation I shouldn't have to worry that I'm going to lose my unity trust. Either there needs to be a way to bank up time (like if you have maintained unity for X weeks it takes X weeks without activity to lose it) or maybe a RoE quest line you can do to lock in unity trust forever. It doesn't seem like too much to ask for.

Alternatively they need to add at least one non-Unity trust healer that doesn't suck. Ygnas is ok, Kupipi is ok. Neither is anyway close to as good as Sylvie, Apururu, or the other one... whom I'm forgetting (Koru-moru? Yoran-Oran?,, the mandragora guy!).

The only other thing in this case that you can't take a break from are mog house gardening and chocobo breeding. If you're going to not be able to play for a while you should plan to not have any of those going, but otherwise everything in this game at least doesn't punish you for not playing.