Your Shop is Great, But...
MAN is it off the mark sometimes. I got SG Janna in mine (probably because I've been playing a lot of Janna lately...) But here's the thing. I hate Janna with a burning passion. I've been grinding this dumb champ because I got an S on her ONCE and didn't get that hextech crate, but I could earn one now.
SCREW YOU JANNA. GET OUT OF MY SHOP.
I don't want to complain too much, because I have gotten a great deal on a really nice skin or two thanks to Your Shop, but I don't think it measures tastes the way Riot says it does.
I've also been offered Officer Caitlyn (I'm not buying anything Cait until she gets a visual update where she's not a sex toy), Pentakill Sona (I have DJ Sona. You really think I want Pentakill?) and Deep Sea Nami (Ok, I like this one, but it's not her best skin and I HAVE River Spirit, which is her best, plus Koi and all the chromas, which are also much lovelier). The only tempting skin this time was Eternum Rek'Sai, for the garbage jungler in me who just likes making tunnels everywhere.
You also tried to sell me Hired Gun Lucian last time, and honestly you just need to delete than skin from the game.
So maybe Your Shop could have like a reroll feature or something? One reroll for that skin that truly is trash.