Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DON'T DO IT! BUY SOME BRUSHES INSTEAD!

A total ripoff. Will NOT handle Killz primer or other heavy latex. Cleanup is necessary every 20 minutes or so and takes an hour. Shoulder-mounted canister is a joke. Whole unit leaks like a SOB, right out of the box. After one use, mine is now out in a box by the curb. Shame on me -- this is my SECOND Wagner. (There won't be a third.)