Liberation HD: buy or no buy?
I'm honestly not sure if I should buy it.
I don't know if it's worth buying it, even though it's only €20.
Can people who bought and played it list some pros and cons, please? Story, character, gameplay, weapons, missions, setting, side activities, etc.
Story: Weak compared to most AC games, but still nice if you enjoy the struggle between Erudito and Abstergo Entertainment.
Character: Aveline is awesome, I found she grew on me quite hard. She's the kind of person who's being told what to do from all sides, but forges her own path, sort of. You also meet Connor and you can play as him for a little bit if download the Uplay Reward and Replay that memory from his perspective. (He branches off and diverts attention to a separate area.)
Gameplay: Assassin's Creed III, with a few additions.
Weapons: Assassin's Creed III, with the Berserk Poison that they also added into Black Flag.
Missions: For me, Liberation's missions were hit and miss. They're not 100% perfect, but they're all enjoyable to a degree.
Side Activities: This is going to be different for different people. I really loved some of these, and really found some others to just be really dumb. Collecting Brooches with the Lady Persona was cool and all, but it's far too slow for me to get any real enjoyment out of it. Makes for some cool puzzles, however, because the Lady cannot climb.
Assassination Contracts are in and they follow Black Flag's/ACII's system more than "kill the guy in the open" system of ACIII. These were my favorite side activity and I quite enjoyed them.
There are standard Assassin's Creed stuff as well, Collectibles, Chests, etc.
There are only three Main Areas, however, and the Bayou doesn't really feel very special. It's a bit too "same-y."
Generally, Liberation is a great game to buy if you just want more Assassin's Creed. Don't expect it to be any kind of Black Flag-level goodness, but for twenty dollars, it's well worth it. It also speaks a little (and I mean, a little) about the "Eve" loose end from Brotherhood.
Thanks DAZ! Really helpful! 
Absolutely buy.
I was going to make a topic about it (and the things I like so far) and I probably still will.
“Force has no place where there is need of skill." Herodotus
Playing the demo gives me the same criticism each time: Why does it feel weird to run as Aveline? It's hard to describe, but it's "stiff-feeling" and it looks awkward. I've seen athletic women run, and they don't run like THAT. It just bothers me.