Up to this point, the service made it much easier for Excel users to find discrepancies and differences. The word "much" doesn't do it justice. It's more like much much MUCH. That's great, but it was still more for quote-unquote Excel users. Even a serious pro would find value. The non-pro may have preferred to stick with stare and compare and tick and tie methods of finding discrepancies.
But this is another level.
Now just about every user can stop manually finding differences. This is now too easy. It's too too easy. If you're comparing anything, you'll quickly see what matches and what doesn't. Row by row is another level.
With a browser, it's so fast. It's fast to learn. No installation. See results in minutes.
It will empower people to automate things they've never automated. And even very heavy Excel users will be able to produce faster results.