Nothing beats a teacher but there are some problematic things with piano teachers IME. (I've had 2 over the past 20 years)

- Piano is super super super biased towards classical music

- Huge emphasis on reading music and playing it back even if you're not understanding it

- Weakness on developing a sense of rhythm and playing by ear

- Weakness on learning to play with others

- The weakness on understanding leads to a difficulty in memorization AFAICT

All this stuff gets ironed out in piano lessons I'm sure but it seems to happen at a pretty late stage that isn't great for an adult beginner. It takes away some of the fun.

I have never taken classical guitar but in contrast to piano your typical guitar lessons are near 100% the other way around. Way more emphasis on using your ears, developing rhythm, playing with others, etc..

The only reason I mention this is a lot of synth music is pop music that has a lot more in common with guitar centric music.

The ridiculous thing is I haven't taken a piano lesson since 2015, I've been taking guitar. My sense of rhythm if I sit down at a keyboard/piano is way better now than when I was playing piano every day and taking classical style lessons. If I went back to some piano now I expect I would improve dramatically from where I was in short order.