What they got right: Those of us who haven't been following Kunckles and his friend for a while (I missed when the "Floating Island" was renamed "Angel Island", although I know that's what the games call it now–or at least that's what they called Knuckles's home on Sonic X) aren't dropped in the middle of storytelling nowhere. There's a brief catch-up told during the story itself in a way that feel natural. I may not know the details of Knuckles battles with this Finitevus guy, but I know enough to follow what's going on. As the first part of a four-part arc, they set up the cast for the story properly. The art is up to the usual heights I've come to expect from the Sonic titles, and you sometimes forget your reading about a bunch of talking animals. They just feel like characters.
What they got wrong: The only complaint I could make here is that Knuckles and the gang deserve their own comic back, but it's nice to see the Chaotix get their own story again.
Recommendation: You'll have to judge for yourself how it stands as a "jump-on" point, but if your a Knuckles fan (at least the Archie Comics version), it's not a bad place to return