Their product is somewhat easy to set up

The full-codebase context is what really sets Greptile apart from a typical diff-only reviewer. Because it indexes the entire repository into a dependency graph, it can catch issues that ripple out from a change into files that weren’t even touched in the PR—exactly the kind of bug a surface-level reviewer tends to miss. On a few PRs, it flagged cases where a change to a shared utility would break something several files away, and we honestly hadn’t traced that impact ourselves during review. The inline comments also come with clear explanations grounded in actual evidence from the codebase rather than generic suggestions. That made it much easier to trust what it flagged, instead of second-guessing whether it was just a false alarm. The automatic PR summaries save real review time too: getting a natural-language breakdown of what changed and why before diving into line-by-line comments makes the human review pass noticeably faster.

I had seen the first product that could get github while generating code solutions and answering code querries. now that mcps have came it has become a lot more context aware and less prone to context overfit