My wife is on the same trial with same expiration date. Learning towards keeping it with the $99 annual cost.

We are saving on average $4 per Uber Eats order. We will use Uber Eats at least 1x per month for the monthly Amex Platinum benefit = minimum $48 of value from Uber One membership. Then we have saved about $4 per trip to/from LAX on Uber rides for trips -- will at least use that 6x per year - another $24. So already 73% to breakeven. In reality we used Uber Eats more than 1x month during the trial because (a) of the promos and (b) my wife finds it easier to use Uber Eats which is tied to her phone vs. logging in as me for to use Doordash/Dashpass (included with my CSR). We saved $79 during the trial period from Uber One membership benefits.

Assuming similar usage to the trial period would be 3 orders per month and 10 Uber rides per year -- which would give an annual benefit of approximately $180 -- net $81 benefit of membership with potential additional upside. Hence learning towards trying it for a year.