I have had 2 Dirt Devil cars using this belt. The belts work well but usually break after using the vacuum continuously (about 40 minutes). The belt overheats and breaks. I think the improved belt design will greatly improve this vacuum itself, but since replacement belts are pretty cheap I can live with that issue. However, I recommend buying at least 3 packs of straps. These belt breaks usually occur about every 2-3 months on average, and always at the most inopportune moment, for example when vacuuming before a company visit. Not having a spare strap handy can be a major inconvenience. In general, changing the belt takes about 5 minutes. All you need is a Phillips screwdriver.
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