The ability to have 20-50 tabs open without slowing the computer to a crawl was the reason I switched, and was highly publicized at the time. You don't need a

The ability to have 20-50 tabs open without slowing the computer to a crawl was the reason I switched, and was highly publicized at the time. You don't need a "set of metrics", you need to do a good job on the one thing people actually care about enough to switch.