I've been a budurl user since its inception and I can say with the utmost confidence that it is, along with its sister service ez.com, the best url shortener and link tracking product on the market. With budurl/ez.com I've experienced:

• the business behind the product is agile- development and extensions are ahead of the curve whether it be with metrics, business intelligence or cross-media technology (such as QR codes.)
• You get what you pay for, and then some- for a product that is often relegated to commodity in an incredibly saturated category, the return is quantifiable.
• the metrics are second to none- even as s tand alone product for businesses late to cross-media metrics and tracking the insight is deep; couple budurl/ez.com with site analytics tools like Clicky and Tynt Insight and you get a 4 dimensional view of testing, engagement, behavior and conversion.
• low investment branded links- The net is the wild West and everyone is vying for click-thrus. Branded links establish trust, mitigating the liklihood that a prospect will dsmiss your links as spam.

The only criticism I have of the product (and the only reason I can not give it five stars) is that with the proliferation of social media management platforms, budurl/ez.com is not available for automated one-click publishing  on all platforms. Otherwise, best product on the market.