I bought the WORX Tri-Vac two months ago based on a promotional ad and find it good for small projects. Texas Oaks have large leaves and drop in deep piles. I tried the complete leaf mulch but not a good idea. Once I had my lawn keeper clean the piles the Tri-vac was the clean up. I bought mine with the metal system for obvious reasons. Damp leaves can cause a real problem with jamming the output. The strap on the bag is too short for a taller person and makes carrying the unit very uncomfortable. As the salesman at Lowe's told me, "you get what you pay for".