No, only thing of his I read before this was Ultimates (I think that was him) which came off like someone trying to write like Warren Ellis/Millar and coming up short.
I'm all for letting things play out, but he needs to start bringing the story together. I have no idea what is going on with all the stuff on mars, the various worlds, etc. You can't just start stories and never finish them.
Haven't read his Ultimates stuff yet but I plan to on Unlimited once I finish Secret Warriors.
Judging by his F4/FF work, he definitely paces things out in a slow progression. The build up to F4/FF was seriously worth it though, but I read it in trade (and I'm still wairing for the last one) in one weekend so I don't know how it read monthly. Others here seemed to love it. I'm half way through Secret Warriors now and its more or less the same.
I think everything will start to come together by the end of Infinity and into the late 20s and 30s. Its a biweekly release schedule so I expect a lot of early story to be building blocks to the bigger picture.