About Maya Chen

Maya Chen tests window cleaning robots the way most buyers never have the chance to — across multiple window types, over weeks of repeated use, tracking suction consistency, path efficiency, streak rates, and what actually happens to a robot when it meets a window frame it doesn’t expect. At Window Robot Guide, every number in a review is a measured number. Every limitation is one she found before you did.

Her reviews are written for people who want clean windows, not a second box of returns.

The Testing Approach

Every robot reviewed on this site goes through a minimum 14-day testing period and 20 complete cleaning cycles before a verdict is written. The test battery covers six protocols: light soil, heavy grime, three-solution streak assessment, corner and edge coverage, navigation stress, and Day 1 vs Day 14 pad degradation. Each protocol produces measured data: timing to the second, Corner Residual in inches, Streak Index across three solution types.

The full methodology is documented on the How We Test page. It does not change based on price tier, brand, or manufacturer relationship.

Site-Original Testing Concepts

Three metrics developed for Window Robot Guide appear in every review and nowhere else in this category:

Corner Residual — The width of uncleaned border remaining at window corners after a full cleaning cycle, measured with a ruler. Benchmarked across every reviewed robot.

Streak Index — A robot’s aggregate streak rate across OEM solution, distilled+IPA, and tap water + dish soap, assessed under both direct and 45° light. Produces six data points per robot.

Pad Tax — The true annual ownership cost: pad replacement, solution consumption, and pad-management labor at $15 per hour. Calculated for every robot reviewed.

Contact

For review-related questions, corrections, or collaboration inquiries, use the Contact page.