Anywhere Cache shines in front of a multi-regional bucket. Once the data is cached, there's no egress charges and there's much better latency. This is great for someone who looks for spot compute capacity to run computations anywhere in the multi-region. It will also improve performance in front of regional buckets but as a cache, you'll see the difference between hits and misses.
Rapid Storage will have all of your data local and fast, including writes. It also adds the ability to have fast durable appends, which is something you can't get from the standard buckets.
Rapid Storage will have all of your data local and fast, including writes. It also adds the ability to have fast durable appends, which is something you can't get from the standard buckets.