Got the chance to play this for a few hours and it's okay but it didn't grab me as much as Titanfall which genuinely felt like it offered something new (although the shine wore off quite fast). I hope Destiny improves, a bit like Diablo 3 since launch, but I read this comparison somewhere else and it sums up my feelings pretty well:
"Halo had epic levels and firefights. The set pieces were fun and memorable and made you feel like a badass when you were successful.
Borderlands had tons of character and humour. Even if the gameplay had its flaws, the game's personality made up for it.
Mass Effect had a cool story and awesome NPCs. You could make some meaningful or at least interesting choices and the trilogy had some fantastic moments.
Destiny borrows the more mundane or core concepts of these games, but not the ones I just described. It's basically like playing Borderlands, minus the laughs and references, with a shiny Halo/Mass Effect skin on top. It literally feels like a game we've all played half a dozen times, except this time it's on PS4 so it's prettier. I'm not hating on the game, just saying why so many people don't seem too smitten with it."
I reckon if you are fortunate enough to have the time and organised friends then it would be a lot more fun (but that does apply to pretty much any online game).
