I just got the first Trade for Superman Rebirth a few days ago (I don't as yet have the Action Comics Rebirth trade, but I'll probably pick that up also in a few weeks).
+ I like the art, its got character to it, it LOOKS like a comic (unlike Darkseid War).
+ The colours are good and they (smartly) use pale and bright colours for most of the backgrounds making the characters in the foreground pop.
+ I like the basic idea of (literally) 'the old' Superman coming back.
+ Superman having a son has potential...lets hope it doesn't all go Bryan Singer on us.
+ Decent Action scenes (for a modern comic).
+ Even though its not mentioned in this trade I am intrigued by the whole Mr Oz/Watchmen 'infiltration'; I mean who the **** doesn't want to see Supes take on Dr Manhatten!?
- Its STILL decompressed (four issues for the Eradicator story) but its not as bad as other comics I have read - the stories seemed to average around 75 panels.
- The cover to Issue #1 (and the trade) is (IMO) terrible, but I really like all the other covers.
- Lois manages to assemble/get into the Bat Armour within 'half a page' (of time).
- Batman has a suit of armour that can go toe-to-toe with the Eradicator...god-damned Batman....cool armour though.
Conclusion: Enjoyable enough, exciting enough and interesting enough to keep reading, though hopefully they up the pace a tad.