Infinity is a 28mm skirmish game set in the near-future with manga-esque aesthetics.
Pros of Infinity:
-Gorgeous models. Almost everything is well-sculpted. It will still depend on your taste of course, but no one can deny that their sculpts are of very high quality.
-Low entry bar. You don't need to spend a lot of money to have an army. This is also why it's common for players to have three or more armies each, since you only need a handful of models at most to have a complete list.
-Tight rules. Unlike
40k with its vague, ambiguous rules, Infinity has a very tight rules set. No more rolling off the dice to determine who's right: it's either you got the rule right or you got the rule wrong.
-Tactically challenging. You are rewarded with how you use your models much more so than what you're packing in your list. This is a game where you can pick the models you like the most in terms of aesthetic value and field them and when you learn how to use those effectively, you can do well. Thus, the mantra of Infinity players that "It's not your list. It's you."
-Free rules! You can download the rules in their website and test it out first before plunging in. See if you like.
-Reactive turns. You don't just sit on your opponent's turn: you get to react and thwart his moves. Of course, that applies to your opponent as well.
-Pretty balanced. There is no
OP or underpowered faction. Pick what you like the most and just play.
Cons of Infinity
-Models in metal. Detriment if you don't have the tools or skill to work with metal and you wish to convert your models. Some hobbyist prefer this medium for sturdiness, though.
-No epically big armies. Since it's a skirmish game, you won't be able to field hundreds of troops and dozens of tanks like in
40k.
-Steep learning curve. It's hard to learn the rules first. That is why it is suggested that you start with small army lists (around 100-150) first and the quickstart rules to
gt the hang of the rules.
-Still small-ish community. It's growing, but still not as big as
GW games or
PP.
http://www.dakkadakka.com/dakkaforum/posts/list/440048.page Also read this for more detailed info.