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I Choose You had a nice setting, but it was a weird one to me. It's a reimagining of S1 as if it took place in modern time. Pokemon from Sinnoh or Alola are already discovered, unlike the original where the lore wasn't yet developed at beyond Kanto. It's a cool idea for a remake, like how HGSS is Johto as if it happened during Gen 4.
But strangely they sanded the edges from Ash's personality. No fun banter or crude jokes, it's like they timeskipped him to be heroic and friendly as XY. They also replaced Brock and Misty with some Sinnoh characters who are sadly forgotten.