一家健身服饰品牌正在推出一个新的高强度训练服系列。他们想知道有多少新用户和唯一身份用户购买了其产品，以及他们的媒体广告系列覆盖了多少新用户和唯一身份用户。他们应当查看下面哪些报告？

The correct answer is Floodlight reports and Reach reports. Floodlight reports track conversions, which directly answer how many new users and unique users purchased products. Floodlight activities are conversion tags that record user actions on a website after an ad impression or click. Reach reports provide metrics on unique users exposed to your media campaigns, directly addressing how many new and unique users were reached. Standard reports offer general campaign performance data but don't specifically focus on unique users or new conversions in the way Floodlight and Reach reports do. Summary reports provide high-level overviews and are less detailed for this specific query.