How are you liking Just Cause 3? I spent so much time playing Just Cause 2, and didn't get anywhere close to 100% completion. I finished the story, but beyond that, exploring was just too much fun in that game.
Honestly its not living up to the hype for me. The Wingsuit is hella fun and destroying stuff comes in many flavors to choose from. My only problem is they give you too much too soon. There's not really anything to strive for, save for bigger guns that cause bigger booms. Challenges rate you in gears that put you through a linear skill tree that forces you to unlock the crummy useless upgrades (that you can thankfully toggle on/off) before getting the good upgrades (some of them feel like they should be necessary from the start).
Explosives are indeed very explosive and there are many things you can explode/use as explosives/turn into explosives. They are marked bright red and white as per just cause tradition, for the explosively impaired. Many explosives explode more than once, making everything you blow up a mini Micheal Bay movie. (gas stations have 3 or so explosions before it detonates into a ten story ball of flame, which would level a city block irl)
The only thing I wonder is, Rico seems more like an eco terrorist than a "rebel". As much as he's damaging the government he's also probably hurting civilians / their economy.
Anyways, I've played a few hours and put it on the shelf for now, currently destroying fallout 4.
To sum it up: Wingsuit + dual grapple + explosions + stunts = good!
Repetitive + too much too soon + bad upgrade system + no real hook to playing other than to goof around = bad!