Finished the main game 100% (still need a few golds and about 20 challenges left, but some are tedious so I'm calling it done).
Liked it a good deal. Was kind of a nice swan song for the series and I imagine that if I'd played SR2 I would've gotten more out of it. Seemed like a fanservice finale to SR2 & SR3. The way it brought back all these SR2 characters and moments and did the same for SR3 (even revisiting the old Genki stage). The super powers and combat were fun, the side activities were pretty enjoyable (although the really fun ones didn't have enough instances and the lame ones [most of the rifts] had too many instances), and the writing was generally pretty enjoyable throughout the main missions and loyalty missions. All the nods to other games, movies, novels, pop culture were neat and Zinyak was a fun villain.
I kind of wish they kept the zany while still doing more genuine moments. Like, probably my favorite part in the entire game, when you're on a mission where you actually have to DRIVE and your driving with Pierce (I think its his loyalty mission) and you're both singing in the car and talking about old times (and then later when Zinyak joins in the singing it's hilarous and funny and yet doesn't destroy the impact of the moment or quest), during that mission it felt like it mas more than just an arcade game where you blow stuff up with good controls in fun ways. It felt like there was a world, with rich characters and story.
I think the downsides are that the main story is way too short (I finished main + all optional activities/loyalty quests + all 1250 clusters + 39 audio logs + 8 text adventures + like 40 challenges in 20 hours; I'm guessing the main story was like 5 hours long, maybe), there's not enough enemy variety so combat does get old even with all the powers, the city has zero personality and is just a map you fly over collecting things on and stopping at points, and there could've been some more character development. Still, it's a very fun and solid game; left satisfied even if it wasn't an A+ epic and more like a B game of tasty popcorn. It's like that fanservice sequel you never really needed in the first place, but why not, it's enjoyable. Feels way more than any expansion has any right to be but feels short of a full price sequel. It seems really somewhere halfway. Hopefully SRV will be a reboot with a full dev cycle.
That said, I didn't try out any of the co-op stuff. How are the co-op activities sprinkled around the map?
I think I'll wait until all the DLC packs are out and there's a sale and then do the expansions since they seem like they'll be similar to the SR3 expansions (60-90 mins, kind of eh).