I am about 20 hours in and almost level 27 or so. All I have to say is I looked to see how many story missions I have left because I do not want it to end... I have about 7 left. And every time some of the mystery is unraveled, another mystery takes it's place and I cannot wait to see what happens next. Yesterday I spent an hour or two chasing down some Wild Flowers and Ancient relics. I upgraded to a hunter Shadow Bow, the best Sling money can buy (The damage output is freaking nuts). I need to upgrade to a shadow sharpshooter bow still (Using the blue one) and upgrade the tripcaster to a Shadow as well, but I am finding I very rarely use the tripcaster for now.
I have started fighting some VERY big machines, and that shadow hunter bow with Hard point arrows is absolutely awesome. I also got my first power cell for that mystery armor you uncover as a level 25 quest very early on in the game. So I am fired up to get that.
Before I continue on in the main story I am going to finish up all the errands and side quests I have.
I booted up Zelda and am fired up to play that too, but quit just after marking the three ruins with the old man, and came back to this. It never gets old this game. And I am STILL reading every text document I find. Which I never do, just because I want to continue to find out what happened.