I really enjoy Tamilee's videos. I have the ones you mentioned, plus "tighter assets Weight Loss," "Tighter Assets Cardio Blast" (this one is harder, I've only tried it once) and the Fit to the Hits-Rock hard assets/Motown moves 2 DVD set.
For clips of these, go to Collagevideo.com
I use a huge variety of workouts, so I can't say I've specifically lost weight with Tamilee, but she has helped. I especially like the stretching videos.
If you get the tv station Fit TV they show her old workouts on the show "Aerobic Conditioning."
"I can't change the world, but I can change the world in me. I rejoice!"-Rejoice by U2