I've tried tons of diets over the years and keto is by far the only one I've had success with maintaining long term. Even when I take a cheat day, carbs just don't taste that good any more so I end up feeling bloated and go right back on keto.

Depends on how you do it. If you completely limit your diet, that's not sustainable. There are alternative versions, such as the CKD. (Which means you have a regular cheat day)

> People drop off and regain all of their weight.

That's pretty much true with all diets.

Every article states this, but personally the keto diet foods are exactly what I normally crave and want to gorge on: meat, fish, nuts, avocado, butter, double cream, low carb root vegetables, cured meats, cheese, what's not to love? It doesn't take long at all to retrain your palate to understand that rich flavours come from high fat food, not sugars.

Some people find it easier to sustain a ketogenic diet when eating only from the animal kingdom: https://www.reddit.com/r/zerocarb/

This doesn't seem to be as big a problem with keto as with other forms of diet adaptation, though. (Although, I'd provide evidence for that, if I had anything but anecdotes to back it up with..)

Modified keto where a higher amount of protein is permitted is much easier to stick to (i.e. 30% protein).. to stay within 0.5-1.5 mmol/L BHB