The Hard Thing About Hard Things is widely respected as the most honest account of what running a startup actually feels like when things go wrong. Scott Kupor, Horowitz's co-founder at a16z, designed Secrets of Sand Hill Road as an explicit companion read, and Sebastian Mallaby draws on it extensively for the a16z chapters of The Power Law. Eric Schmidt's Trillion Dollar Coach cross-references it on CEO coaching, since Bill Campbell coached Horowitz himself.
Rand Fishkin engages with it directly in Lost and Founder, while arguing that Horowitz's playbook assumes a level of capital and talent most founders simply do not have. Readers value its raw, no-platitudes approach to layoffs, demotions, and near-death company moments, finding it a corrective to the optimism bias of most business books. The main criticism is that its lessons are drawn from a rarefied world of well-funded Silicon Valley companies and may not translate to smaller-scale entrepreneurship.