I think most people who didn't like Fear either didn't like that it is different or got annoyed with the characters for not knowing what was going on, from what I've gathered on a TWD forum. Most people forget that the TWD universe is one in which zombie media never existed and since we know what's happening, people got tired of watching the characters trying to figure it out. Some people had other complaints that were mostly silly, and I haven't really heard a good reason for disliking it yet. I think it's too early in for most of the reasons people have had, so you'll probly at least find it okay, though of course it hasn't had time to get as good as the main series yet.
Also, the comics read fast, so that may not help much.