Not an expert marksman but it does shoot flatter, if we ever get past 100 yards it will make a difference. Ammo is about as avaliable as 308 and other experiences are similar to 308 for me so I didn't see any downsides.
Ok. Decent response. Will help you expand your horizons. Typically, most are looking for personal experience with owning, shooting, etc. Understand that folks need to start somewhere and not everyone's lifestyle (time, desire, etc) facilitates that. That said, sharing your personal perspective is helpful, but also helpful to include background on whys. 100 yard target shooting is certainly good, but different than long(er) range shooting. So when you say "shoots flatter", hope you understand or will learn by asking GOOD questions about why that matters. Not just going by what you read somewhere, hear someone else say, etc.
When comparing things, context is again key. Again, for target/paper shooting at 100 yards, performance of .308 and 6.5 likely won't see an appreciable difference. Different than say hunting, longer range (500 yards +), etc. Not a criticism, but explaining why context is important when sharing experiences in gun forums.