P1
Product 1: Shark CarpetXpert Upright Carpet, Area...
4.4
Most reviewers report strong results on common set-in stains (mud, wine, tea, pet urine/vomit, and older upholstery marks), especially when using the handheld tools for focused agitation and extraction. One controlled test found upright performance lagged on thicker, greasy food soils like peanut butter, leaving some staining after many passes.
P2
Product 2: Hoover PowerScrub Carpet Cleaner Machine
3.9
Stain removal is commonly described as solid midrange: many stains improve quickly, some heavier/dried stains can take more passes, and a few test-driven sources call the overall speed average. One recurring positive is that the SpinScrub-style brushes tend to spread stains less than long brushroll designs.