SF5 hard knockdowns and knockdowns that give guaranteed oki (followup attacks that will beat non-invincible attacks) are huge in this game.
Upside-down kick is best used in those oki situations, you mix between upside-down kick and throw, and if the kick hits, you start a combo. It’s too good IMO (I think Guile is a top-3 char in SF5 still)
Overall I’m really not feeling S3 right now- why I’m starting to look at other games. A lot of folks are doing this locally as well. DBFZ is taking a lot of folks, but I also live in an area that has never liked Street Fighter after 3rd strike.