bsittler and smws greeted me at the airport with a sweet lemon in Dec which was interesting, but I prefer the original kind.
Seedlessness is valuable in citrus eaten fresh, like clementines, but it is unclear whether it will be important for lemons, which are mainly juiced.
The Fino's flavor was not noticeably different from a normal lemon's, but two selections of Femminello, the leading lemon of Italy, had pleasingly sweet edible skin.
Ooooh.... I want one of those!