TablePress is a beloved free WordPress plugin, and for pure data tables it's excellent. Plenty of affiliates start their comparison tables in it. Here's what works, what breaks, and when it's time to move on.
Clean spreadsheet-style editing, shortcode embedding, sorting and filtering. For a specs table you maintain by hand, it's hard to beat free.
A PA API-backed builder like Table Labs flips the model: you pick products, and the API supplies images, live prices, and correctly-tagged links automatically. Tables embed with one line of code on any platform, and one edit updates every page the table lives on.
Many sites sensibly keep TablePress for editorial data tables and use an API-backed builder for anything with a price on it. Right tool, right job.
Try Table Labs — $20/month, unlimited tables