Alexa-
I am not sure I ever hear a soothing female voice when working on my series.
Then again, I haven't seen the TV commercial. I found this stuff being sold at a flea market, then latter found that the better welding supply shops carry the stuff under various brand names.
What I would suggest for a "novice", and anybody else starting out with this stuff is to practice joining aluminum "beverage" cans togeather until you are sick of seeing Budwieser, and Coors transformeres walking around your house. (At least until you feel comfortable playing with it. Then move over to your Rover part.
The brazing sticks I have used also get harder with time, (after use) so if you need to file/grind down the excess on your repair, it is better to do it within a day of application, while the hardness is closer to the part you have repaired, rather than a month or so latter when the difference in hardness may make it difficult to control the metal removal.
Also cleanliness is really important when using it. clean the parts well, and prepare the surfaces with a stainless steel brush that has ONLY been used on Aluminum. (I wrap my bruss in Aluminum Foil when I store it to keep contamination down.
-Reed