Far as "commercial browsing" goes, TOR is safe. Only country-level spies can crack it, but for 99.99% of sites you'll be perfectly anonymous.
Also, someone mentioned criminals getting caught : the purpose of Tor is not to cover up crimes, but to give average folks a relatively anonymous platform. The criminals getting caught on the Onion network are doing drugs, murder, and so on, and most likely they were caught outside of Tor, via their money trail, rather than on Tor.