I never cared for it, the first syllable reminds me of "sweat".
Lana is better. Also
Svetlana is one of THE names for women in Russian speaking countries and some other countries as well. Or it was until the 90s or so. I know quite a few Svetlanas. Some go by
Lana, some by
Sveta I have never met one who used the full name. So yeah, I vote for just
Lana.