Just finished this after around 10 hours of playtime. So it's not the longest game, though to clock in at 5 hours you'll have to rush through and hardly enjoy the wonderfully crafted world and all of its details.
Both story and gameplay-wise the game ramps up noticeably towards the end, with some interesting twists and amazing gunfights. Definitely looking forward to a sequel of some sorts - or even DLC for that matter.
What stands out mostly for me is how coherent it all feels. As long as you don't mind spending a third of the time walking around (beautiful scenery) and another third watching and listening (to unravel an exciting story), you'll have an absolute blast - and some of the weapons are immensely satisfying to use
Is it worth 60 Euros? Tough to say, there isn't much to come back for after you finished the game. Anyone still on the fence may want to wait for a pricedrop.