What I liked was being able to see the history of the gas price. That helped me to decide on a price for transactions that were not time sensitive. It's nice to now that the low price now is 24 gwei, but if it's been 12 all week, then why pay 24?
Looks interesting. Reminds me a bit of APY.vision. A tool I used during defi summer to keep an eye on my LP's.
They have a subscription model where you just buy and hold their token. As long as the token is in your wallet, you can use their premium features. When you are done with the service you just sell the tokens again.
Of course I lost more money on that token than a subscription would've cost me, but I thought the idea was pretty cool.