Better late than never. I bought 4 different pressure washers before this was over. The first one from Sam's was simply defective. I then bought the "same" washer from Lowes under the John Deere Label. Holy cow, nowhere close to the same machine!! Lower quality pump, lower quality cart, shorter hose, solid wheels that slide like they are on ice and let the washer run away during use. One a 1 to 5 rating, it gets a 1.5 rating.
I then went to Home Depot and bought their "best" Ridgid
fuel injected pressure washer. On a 1 to 5 rating, it rated a solid zero. They traded the first one out thinking it was defective. The 2nd was just as bad. It was horrible to start, leaked everywhere, was positively impossible to keep from running off with hard plastic wheels and very, very weak pressure with low volume. To Home Depot's defense, the store manager called Ridgid and gave them an ear full and gave me a $50 gift certificate for wasting my time on a junk machine.
So......back to Sam's I went and bought the Simpson I started with. I now have about 20 hours on it and it's fantastic! No leaks, it doesn't run away. It's not as bad on gas as I thought and it's an absolute beast of a pressure washer. I bought the little round disc that is for cleaning concrete at Home Depot (with my gift certificate), and it works wonders. I bought 100' of extra "Monster Hose" on eBay for $75 along with various fittings. Now I don't need to move the pressure washer much with 150' of hose. I give the Simpson at Sam's Club a solid 5 out of 5. If you look on line at others that are "similar", you'll find that they are not the same. They either have a lower quality pump, lower quality cart, shorter hose, etc. If you want a powerful pressure washer without spending $5k for a heated one, grab a Simpson at Sam's Club.