Bought Wilks-USA RX525 pressure washer off Amazon. Prompt delivery. Used hobby-type power washers for years for outside concrete/paths and patio cleaning, Kew, Karcher etc but this is by far the best value for money: substantial construction especially at weak points, easy to assemble and use one-handed (I have disability), easy to change accessories and more power than other brands I have come across. Spray gun is well balanced and the pressure hose is really long so you don't have to move the unit often, it also coils up neatly on the wind-up drum which is handy for transport and storage. Haven't used the detergent tank or the soft brushes, but the turbo nozzle is a bonus since you don't have to fiddle with adjusting the angle of the fan; mine somewhat sporadic in operation but I guess that's just a teething stiffness in the ceramic bearing should clear in time, the patio cleaner works well for maintenance cleaning although not as vigorous as the nozzles, found the mid-nozzle (green) worked best, easy to change one-handed, good pressure and fan width for bringing concrete back to original appearance in reasonable time. Worked off standard Hoselock connector on the hose (although one is included). Really pleased with this unit, glad I didn't go for a Karcher!