I finished WWE 2K20's MyCareer Mode over the weekend. Took probably around 20-25 hours or so.
So, I have around 28.3 hours total overall or so with WWE 2K20 (Standard), according to Steam - as I did play a few hours here & there outside of MyCareer (before tackling this mode).
I have finished MyCareer Mode - for the most part, I really enjoyed it. It was good & feels like a nice evolution, in many ways, to the format that began with WWE 2K19.
MyCareer in 2K20 always tries to keep things fresh, somehow - despite going on for the 20-25 hours it goes on for. By playing out like a Greatest Hits for matches & constantly changing up the match types, you don't get a feeling of fatigue that many previous WWE 2K games' MyCareer modes since 2K15 have had. You don't get caught up in the stuck in a feud with a certain wrestler for matches in a row & maybe get a different match type near the end of the feud.
You also have two wrestlers here, one male and one female, so you don't get tired of doing the same moves, same skills, etc. over & over, match after match - especially if you build your Create-A-Wrestlers differently with their moves, skills, etc. For example, I made Red more a Luchador/High-Flyer, yet made Tre a Technical Wrestler; this game will stay fresh. Also, the game will even have you play as other wrestlers when need to be, to even facilitate the story & to keep stuff fresh.
While MyCareer at times does feel like its story does get a bit crazy, ridiculous, and over-the-top - yes, even for something as over-the-top as wrestling is - it's still most of the time usually fun, entertaining, hilarious, and has enough variety to remain fresh, even after the 20 hours or so it goes for.
But, here's the Buyer Beware part. My God, the bugs & issues! While they (WWE 2K games since 2K15) always had some issues & most there were minor, it's really gotten to another realm here in 2K20. I've literally had issues that after a few hours of playing, the controller suddenly stops working and you're stuck with keyboard/mouse controls...unless you quit out or reboot the PC. That's not good at all for a game best played with a controller. Never had that issue in other WWE PC games (since 2K15). So, you'll have to exit the game and start it up again; or reboot the PC and boot the game up fresh. I've had the game crash-to-desktop; Blue Screen of Death and reboot my PC (only game on my SC15 that I've ever seen do this on W10 ever); and other non-sense.
More Buyer Beware incoming. The physics of the ropes might glitch-out, but at least it now bounces back in place; still noticeable though. Sometimes, wrestlers animations for moves...look & go way too fast. I've had wrestlers get stuck on the ground...unable to get up in the match and move, despite the controller still working (to pause, go to menus, etc). So, if you can handle the bugs - you'll like the game, if you like the WWE 2K series. It's more WWE 2K19, but better in many ways...except for the bugs (the biggest problem); some hit & miss w/ characters not looking like the real-life wrestlers/characters & counterparts; and/or other non-sense.
Still, this all is nowhere as probably as bad as many of the issues I've had with other games like Deadly Premonition 1 on the PC - but this one here (WWE 2K20) isn't good on that stuff either. This bugginess still can be a deal breaker for many - and honestly, understandably so.