Instruct: Classify the given review into positive or negative sentiment.
Query: Not ready for prime time

Nelson reference has recently come out with version 2.1 which will be downloaded to your system automatically. This new version is very unstable (see Nelson's web site for the extensive repair instructions to follow when it fails). Further, Nelson's idea of tech support is a long distance phone # where you can leave a message - that is ignored for weeks at a time. You can also send an e-mail which is also ignored. Until Nelson works out the bugs with version 2.1 you are better off going ANYWHERE else...