A 175 is probably the most versatile machine you will ever own. We are spoiled today with crbs, rotovacs with brush heads and other rotary machines but there was a time when the 175 was king. If you can't afford all the other toys, you can usually buy a used 175 for a couple of hundred bucks on cl. Combined with a solution tank and a shampoo brush, it's the best machine for scrubbing in your prespray. Put on a drive block and you have a bonnet or pad machine. Doing vct floors? Best machine ever invented for small jobs. Yes it's heavy and has a learning curve but if I had to choose only one accessory machine paired with my truck mount, it would be a 175.