For musicians focused on gigging and recording, certain devices might not fully meet expectations, particularly when it comes to live performance. In this case, their value lies in being easy, lightweight, and quiet practice tools.
If you find it difficult to discern, or are indifferent to, differences between models and real hardware, modeling sims become a compelling proposition. Given that individual amps can cost $1,500 to $2,000 or more, having a broad gear collection, like that in the Quad Cortex mini, is financially savvy. Ignoring such a deal would be unwise, echoing a rationale my son once used to justify a purchase.
Even enthusiasts might not need a hardware pedal unless they relish practicing without a computer, or if they frequently perform live. Recording guitarists working “in the box” might prefer more affordable Neural DSP plugins. Alternatively, comprehensive software suites like Universal Audio's Paradise Guitar Studio or PolychromeDSP offerings provide excellent sound quality.
Those content with software and seeking a free option can explore the NAM (Neural Amp Modeler). An open source modeling technology, NAM features a community-driven tone-sharing platform and garners praise for sound quality. However, most NAM models are fixed captures, sounding excellent but representing specific setups and knob positions. Developers are working on more dynamic, adjustable models.
Ultimately, both hardware and software advancements have improved the experience for guitarists and bassists, whether for practice or recording. The ability to experiment with and master varied gear accurately is a significant advantage for home hobbyists and small-time musicians, who might otherwise have limited access to such equipment.
The crucial factor is to find what suits your needs and then enthusiastically let your creativity flow.