I got only experience with the PC version (which I dont play anymore) but the OP is asking for Xbox advise and so Id like to post a little OT with communications:
Now lets compare the two posts here:
The first interesting one:
[QUOTE=lobster;376890]-Lots of empty servers
-Community is practically dead
-No team balance so you will often find yourself in games where it’s 2v8
-Single player AI is awful
-Multiplayer ends in spawn camping a lot due to stacked teams
-Can’t switch body types in games (if you want to switch from light character to medium size, you will have to leave your current game and go to the main menu)
-Can’t change weapon attachments or abilities in game (again you’re going to have to leave the game and head to the main menu)
-Lacks of maps
-You will have to pay another $10 for the new map DLC that was promised free, but later changed to paid DLC
-Bad HUD design, often your screen will be covered in little text boxes and images
I’m sure I’m forgetting some things, but I bought it for $25 and felt it was worth about $10-15 at most, and that’s including all the DLC (maps and character packs). Hell no at $50+$10 for DLC, that price is a joke for what you get.[/QUOTE]
On the first we have a relativly long list with negative impressions of the user that many in this forum share and a couple of true facts in the end of the list. This list is followed by a personal statement of how the user felt after buying and what his impressions are about the price.
This was a well put criticism, very negative but in no way off due to the personal references. It was in no way invasive and is an opinion, that can stand for its own. Thats how you do it!
Here come the second one:
[QUOTE=Rex;376849]It was never worth buying! DON’T BUY!
Feeding ducks with your money is less wasted than buying this game. Additionally no one plays it anymore, apart of 550 casuals and a bunch of console players.
Nothing got fixed, so save your money for the really good games this fall. You know what I talk about 
Btw, I am excited to read the first retarded comment from a Brink fanboy to my post :D[/QUOTE]
I love this one! We start out with reading a headline that uses three editing tags ([B][U][SIZE=4]) and really screams for attention. The wording implies to be a fact and is only just an opinion. The second sentence written with caps lock is even better: “You gotta do, what I tell you!” A classic imperative. How do you feel when you read that? For me this really triggers what is called reactance. At that point the user already failed to deliver his message to me. But lets read on:
Now comes an analogy that is again a personal opinion pretending to be a fact. Hardly funny to me, but some might think different on feeding ducks.
Here is my highlight! Additionally no one plays it anymore, apart of 550 casuals and a bunch of console players. This sentence not only reveals that the poster is offtopic with his PC experience (reading comprehension?), it is loaded with inaccuracy and wrong facts. While its unknown to the public how many console players are actually playing brink (just “a bunch”), the amount of 550 refers to the peak amount of users in the steam top100. That “peak” means “most games loaded at the same time in the last 24 hours” and actual amount of players is a different thing as players during the other 23hours and whatever time are not counted.
The next part is again not glancing with truth (as there have been fixes) but not really important anymore as we come to the finishing statement, which i really love! It translates to “everyone with a different opinion is a fanboy, thus not having any credability” or in the harsher version “if you say something different, you are retarded and lying.” Ah you gotta admit that this is great! Thats a rhetoric master piece and should save you from any criticism! Oh wait, it actually only works on people that havent already learned how to deal with opposition and cant discuss yet. But it tells us even more about the author and how insecure he is about himself and people with other opinions.
Ok, so we saw two negative posts. Both harsh to the game and its short commings. The first author is expressing his experiences - from his point of view - and delivers a helpful comment.
The second post is full of pretended facts trying to show the one and only truth to the OP. Plain black and white thinking at its best and failing at being actually helpful or true. But hey, it was a great flame bait! 