Keto is EASY compared to any other diet I've tried for one key reason: you don't feel hungry.
You can eat as much as you want, whenever you like. Soon enough though the effects kick in, your hunger is supressed, and you have to remind yourself to eat at times.
No matter how enthusiastic you are at the start, hunger quickly erodes willpower. I failed miserably at the typical low-fat diet. Keto was the cheat code.
This is also a "hack" to get into clothes that are a little too tight way faster. Your body basically shrinks a little.
The only downside that I can think of it was really, really, really, REALLY boring.
so boring in fact that after a while I did not look forward to eating - while normally I am a foodie and just love to eat, when I did keto that wish to eat was gone.
however I still would very much recommend keto if you can find the life setting that supports you doing keto, because I can guarantee you that other members of your family will not want to eat what you eat- once or twice, MAYBE, but not all the time.