Having tried several supplements, I am currently taking Xenadrine and I really like it. To be honest I think it is better for giving you the energy to work out hard than for actually helping you lose weight (more rapidly), but this isn't nessecarily a bad thing. I workout regularily and am not really interested in losing a lot of weight, but I take the recommended dose of Xenadrine on a regular basis. It has also allowed me to stop relying upon any sort of coffee, soda, etc. I'd much rather get my dirty pleasure of caffeine/energy boost from something that actually stimulates muscle-sparing fat loss than several cups of coffee.