we used Stanley Steamer, the hot steam discolored the carpet in areas surrounding the stains and their suction extraction method damaged the carpet, leaving it with a hard, scratchy surface and track marks from the machine. I was hesitant to try another cleaner, but Jake at Best Carpet assured me they are very experienced with wool berber and they use a use carbonation technique, not hot steam to clean carpets. I can happily report that his team did an amazing job and our cleaner, Cen, was very careful and detailed in cleaning the stains while improving the texture and returning our carpet to it’s natural softness. I highly recommend Best Carpet for wool berber carpet cleaning and would definitely use this company again.