I remember well a box of Trini Vigias from 2014, smoked during a period of one summer month in 2020. Flavor had evolved, into a somewhat less aggressive cream and biscuits Cohiba, with a touch of lime on the side. Excellent. So, those initial releases, do age well into the 5-8 year period of time.
More recent Vigia, from 2019-2022, have been more consistent in construction, mondain in appearance, less oily, but mundane in flavor profile. Give these, 1-3 years.
The time period from 2016-2018 is a bit of an oxymoron for the Vigia. I have had both excellent boxes and some total undefiled, horrible disasters. I would avoid this period when buying blind.
I have been smoking and collecting them since release in 2014 and the Vigia is in my top 5 cuban cigars and #1 in the short, fat robusto format. Currently, I would suggest older boxes from 2014-2015 or those magnificent ARS 2019 boxes, released together with the new then Esmeralda and Topes.
Cheers!