It was amazing right away I bought it because it had a brush that was a $10 accessory to other cleaners. There are many hacks on YouTube to improve cleaning products and I've used a few of them. I added a rubber grommet (shown in gray in Figure 2) to the cap and a screw to hold the cap on the front edge. Now it closes and closes. seals the vapor outlet and you can also move it without spilling liquid. I also added a scrubbing pad over the pump filter inlet, secured with zip ties. This additional "filter" stops possible blockages! I use WD-40 to clean small vintage motorcycle parts (it's solvent-free, doesn't cause flash point problems, and doesn't corrode alloys). Great purchase, very useful.