Ok, so G GEN.
I moved my cross-save to my PS4 copy and THE PS4 VERSION IS SO MUCH BETTER. Like leagues better. It plays about 2x as fast, the map movement is super fast and fairly slick (although still not up to SRW V standard), the on-map animations are quick and the loading is almost instant for the battle animations so it's actually worth watching them sometimes as opposed to the vita version long loads and sluggish movement and animations on the map. Most of my slowness issues are remedied on the PS4. You can definitely tell they made it on PS4 first and then tried to get it working on Vita after. The only downside to the PS4 version is that the battle animations are pre-rendered 30fps moves that look a little faded which contrasts the slick 60fps map stuff (compared to the vita where everything is 30fps so it feels similar).
Got all the DLC. Was reaaaaaaaaaaally cheap for Scamco standards (like Gundam Breaker has $50+ worth of DLC). Most of the stuff was free DLC. Free units, free stages, free pilot! The pay stuff was very reasonably priced at like 100yen ($1) for the Thunderbolt Units, $1 or $2 for the Advance of Zeta units, and then $8 for Hathaway's Flash but that includes the full story scenario. Overall I bought everything at it was only 1200 yen ($12). Pretty sweet. But now I can't cross-save back to the Vita if I want to play on the go since the vita version doesn't have the DLC and won't accept the save. Still, since the vita version sucks I'm ok with just playing it on the PS4 even though it's more of a bathroom break game.
Game-wise, I finished 0079 and moved on to Igloo. I'd never seen Igloo before since 3d anime is awful (although it's improved a ton in the decade since) and I think I'm on the last stage now (stage 5) and Igloo is pretty great. I like how each ep is the story of some weapon test in the background of 0079 and everyone who died in the failed weapons tests ;_;
About half the free DLC units are god-tier broken, so I'm avoiding using anything too much better than what I have already. The only ones better/broken are the Advance of Zeta units, Barbatos and Scramble Gundam with its 500 all stats
I'm using Barbatos though because Barbatos is cool. Otherwise my team is like 0 Gundam, Gundam 4, Gundam 5, Gundam 7, Perfect Gundam, Pheonix Gundam unlocked, Full Armor Gundam, Psycho Zaku, and the old DLC OG units. Mostly just 0079 stuff since story-wise that's where I am in the game. The 0 Gundam can upgrade to the 0083 Gundam 1/2/3/Dendro so will be jumping into that stuff soon.
Anyhow, as a Gundam fan this is pretty good on PS4. It's still a little slow, but playing through all these UC stories in shortened form is great. The only ones missing it seems are Giren's Revenge, Advance of Zeta, and Igloo 2, plus Thunderbolt and Origin because they're too new. Also it's a little annoying they're using the Zeta movie version since it's bullshit, but everything is and will be using that for years it seems. Same issue Eva Rebuild is having where good luck seeing Eva TV in anything for another 10 years.
This will last me in my Gundam needs until Gundam Versus in a month-ish.