FTL is a fun little game to play in when you've got a few moments in a day. A couple of jumps will burn off five or ten minutes, depending on the complexity of any fights you might get into, and you even have the option to save and quit out for the next time, which I tend to do often. I will admit that, even when the RNG drops a space cow on me, I accept what it for what is--a cold, uncaring universe with a tendency to drop space cows on people whether they deserve it or not. That and giant alien spiders.
If I have to quibble, I'd say that there are two things which irk me a bit. One is the slight lack of internal rules consistency, AKA The Computer Is A Slightly Cheating Bastard. Most of the time, enemy ships follow the same rules you do, in that the two of you will try to kill each other legitimately (by which I mean the game's combat is, strictly speaking, fair enough that you could control the other ship through the same means as your own if you were them) except for one thing. Enemies getting multi-room targeting with burst weapons while we're stuck with hammering on one room with a multi-shot laser is a bit unfair since it means they could theoretically take out your piloting, oxygen, and medbay simultaneously with a bit of luck.
The other is the space-cow-gods-be-damned final boss. I'm not complaining that it's too hard, but rather that it's too predictable. Having won the game more than a few times by now, it's ever so slightly disappointing that the real meat of the challenge against the Flagship tends to boil down to whether you have a defense drone and some way to bypass shields, such as a crew teleporter or decent missile launcher. If you do, well, you're really only going to be worrying about the triple ion and maybe the triple missile launcher. If you don't, you're much more likely to be boned in this encounter, especially when the second phase comes around and boarding drones want to come and say hi. In a game where all other enemies are effectively randomized in loadout, it's rather disappointing for the boss to be so easy to gauge in terms of difficulty. A bit of variety in the boss would be nice.
But I suppose that's what mods are for.