A fully-featured audio/midi workstation with a great user interface, supporting VST filters and synths, low-latency ASIO, DirectSound i/o, ReWire 2.0, lots of built-in effects including a sampler and pitch-shifter; unlimited tracks + freedom to mix sample rates and time-stetch audio, powerful project management features and archiving using FLAC and Ogg-Vorbis compression, integrated cd-ripper, and much more!