Comparatively, in Smash 4, Sonic's Usmash is still really bad. Saying that it at least kills now isn't fair when basically every move in this game can kill. Brawl is a totally different engine. A jab combo can kill you now...
Bottom 6 in knockback, bad start-up and end lag, terrible on block, and still not even safe on hit since there's a chance of them popping out... At least we still have that slight intangibility, I guess?
The only real buff between versions it got was it actually killing early. After the nerf though, it invalidated that completely.
Like, yeah, it has its uses. It can punish airdodges and landings, especially for platform pressure, but still doesn't mean it's
good. Everyone likes to say it's good for tech chasing but it's not that great either, honestly. It still relies on a hard read, and if you whiff, you've just committed yourself fully and will be punished.
I get Usmash kills/reads and I like mixing it in, but I very rarely use it as there is usually a better option.
I too miss DACUS and pseudo spikes, lol.
Still not as bad as our Dsmash, I guess.