Where it works best is exactly where a small business has an advantage. You know things a large competitor's marketing department does not, because you do the work. You can be specific about your market, your prices, and the situations you actually encounter. Large sites publish comprehensive general material and cannot publish what it costs in Las Vegas or why the standard advice fails in a particular local condition. That specificity is both what ranks and what persuades.
Where it fails is when it is treated as volume. Publishing frequently to fill a schedule produces thin material competing against established sites on their terms, which is the contest you lose. Twelve genuinely useful pieces in a year, each answering a question a customer actually asked, will outperform fifty produced to a calendar, and the second approach is what causes businesses to conclude the channel does not work.
The timescale needs stating honestly because it is where most abandonment happens. Nothing meaningful occurs for several months. Search visibility accumulates rather than switching on, and a business expecting enquiries in week six will stop in week ten. What you are building is an asset that keeps producing without further spend, and the comparison is against advertising, which produces immediately and stops when you stop paying.
Measure it by enquiries rather than by traffic, and by asking new customers what they read before contacting you. Traffic is easy to produce and easy to feel good about, and a page attracting two thousand readers who were never going to buy is worse than one attracting ninety who are deciding.
The honest test of whether to start is whether you will still be publishing in month nine. If the answer is no, a smaller commitment done properly, such as a thorough set of pages answering your most common questions and kept current, delivers most of the benefit without the abandonment.
Publish where you own the destination rather than only where the audience is. Material posted exclusively to a platform builds an asset that platform controls, and reach on any of them can change without notice. Your own site is where the work accumulates and where search visibility attaches, and social platforms are best used to point at it rather than as the place the thinking lives.