I think it depends on your circumstances.
I'm at a point where I have pretty much tried everything over 40 years from low fat, low carb, 1:1 online coaching, Slimmers World, Weight Watchers, the NHS dietitians twice, Crossfit/Paleo, intermittent fasting in various forms & I'm a qualified PT. 😁
Still fecking fat with shit blood results, high cholesterol/on statins & probably full-blown metabolic syndrome. Dodgy thyroid too.
Arthritis is giving me significant joint issues so the advice is lower weight & curb inflammation too.
So for me, it's worth it as all these problems cost me more. Sore feet costs me a fortune in shoes. 😎
I really wanted to see if my diet was as good as I thought it was too. It's definitely informed me about what to eat to suit me & I feel a lot less puffy.
Whether I can get it or indeed want to get to 75+ days most days, I'm not sure.
So it depends really. I think you have to be quite invested as there's a huge amount of information to take in (or in my case, skip read!) so time as well as a cost is something to consider. 👍