I'm glad this game actually came back. Spectre is pretty fun so far. I was a Hitman main, so I see a lot of similarities in their playstyle.
I feel like people use a lot of hyperbolic language when talking about this game. Saying things like it's one of the worst games ever, or all the characters are overpowered. Honestly though, when everyone is powerful it kinda evens out in my experience. There are also much worse fighting games out there.
It's not exactly newcomer friendly, but if you have experience with something like Dragon Ball Fighterz or UMVC3, it won't be too overwhelming. Both of those games have combos that are probably even more extreme. This game is only 1v1 after all.
Some characters are tough to fight against, but there's always a way to stop their offense. It's not broken, it's just hard. Losing is part of getting better. Don't worry so much about winning. Just try to have fun and learn something new in each match.