Frequent traveler on East Coast to SFO. And, I have many friends who have to buy up to E+ on these flights. The $89 is standard for this flight distance and worth every penny . If the limited recline is Row 20, it gives you far greater leg space than any row other than Row 21. If the limited recline Row is any number other than 20 , buy a regular recline Row.

Some might argue that the very first E+ Row is best, but you do not have any under seat space for belongings.