I personally like fake christmas trees. I think real tress are very messy and I have anxiety around house fires so obviously as trees dry out the more anxious I become. I find fake trees reduce a lot of my anxiety.
As for the lack of smell, that doesn't bother me too much! They make "ScentSicles" that smell just as nice as the real thing and stay pretty potent for a while.
Also I feel like a good fake tree is a worthy investment, however restringing lights on them are a pain in the ass!