You will get there, in 3 years I got over 150 all positive reviews. The key is pre vacuuming, spray the cleaner thoroughly, work on stains and extract thoroughly with at least one dry pass to every wet pass.
I do one dry pass immediately following a cleaning (wet pass), and then double triangle the area and then overlap slightly and repeat. For extra soil I slow down a bit and it flushes it out. My dry times are amazing. Customers rave about it.