By far the best. Simply, it tracks everything. When installing I thought to miss something, because it's absolutely simpler than ever (and I tried 4 other commercial solution in these years). Just give it the UA code, setup analytics to track ecommerce, and it's enough. It tracks both the orders than the products inside, so analytics can calculate the stats for each products, and category. I have some manual payment, as bank money transfert and a payment on shipping received, this extension tracks them when I set the order status on confirmed. The simplest and better extension I have ever tried for tracking virtuemart to google analytics.