I would agree with @CigarZen and @sw15825 that age in general is good. 4 to 5 years as a rule of thumb will give you cigars that will be ready to smoke and completely over any young edge or tannin forward flavors. This is my personal preference. When I first began in this hobby roughly 5 years on a cigar before smoking was pretty much industry standard so I have been doing this ever since. Back then it was much easier to get your cigars to this minimum age because you would receive boxes with between two to three years of age, sometimes more when ordering. This is no longer the case especially with the more popular brands/vitolas. You are fortunate to get a year old box. It's a lot tougher to build up stock. I've noticed that if my cigars are good at around five to six years of age those cigars tend to have potential to age well for multiple years.
Now, having said this I will tell you that aging your cigars can be a rollercoaster ride. I know It has been for me. You can have a cigar that was very good a year ago, taste one today and be totally underwhelmed. You may bury that box and try it again in a few years to discover they have turned the corner again. Peaks and valleys are common. This is why people will advise that if your cigars are tasty and to your liking now to smoke them. Age cigars you enjoy and don't give up on cigars that aren't stellar right away.