I bought Endless Space and Endless Space 2. Only played the first one so far. I can see what you meant...I think it may have been the poor tutorial and manual. I will try them both and a few times and see.
Could be yes. The reviews and comments about ES 2 are really good. I believe it's a good game, and of course I wouldn't have purchased it otherwise. But it just didn't grab me straight away. I'll give it another go when they've added some additional content I think.
Also bought XCom 2...have not played yet.
The second original XCOM was one of those games that swept me off my feet. Bought on a lark, and then I proceeded to drop 300 hours in to it. The combat is just so good. In XCOM 2, I started with the tutorial, and then kept getting my butt kicked. Started over without the tutorial and it's been going well. I'm only a few hours in, but I'm liking XCOM 2.
I bought a game called Stellaris. You should try that one...it sucked me in right away. lol
I have it. One of the few games I did buy on release. I really enjoyed it, up until the point where my glorious navy was crushed by a massive coalition and I stopped playing. Back then, the AI put every single ship in to a huge doomstack. The combat just wasn't very well done in my opinion. Plenty of DLC has been released and I suspect it's improved, but I haven't revisited it in a long time. I have quite a few Paradox games, with a couple thousand hours in EU IV. Their DLC policy has put me off somewhat in the past couple of years, but that's a personal thing. But there's no doubt Paradox are masters of Grand Strategy games. Crusader Kings, Hearts of Iron and Victoria are also excellent titles.
Here's a thread about my foray in to this game.