I demoed these two products (Rowland 201 and the Nuforce 8.02), and found the Rowland had only slightly (!) greater control over the bass (with 150 additional wpc one would have expected this) and a slightly more resolved noise floor. In all other areas I found the differences hard to distinguish in an evening. Rowland build quality is beyond the beyond, this is what you are paying for. Both companies have fabulous and quick service should you ever have a problem.
The Rowland 201's sell used for approximately 4x the price of the Nuforce used. After our audition, the owner of the Rowland sold those amps and is now using NuForce, prefering to spend the difference on other areas of his system.