I second that. At that price and shipping, you can't pass it up, even if it turns to be a complete waste. I have not opened my pack yet. Maybe those cheap microscopes as well for zooming to view SMT.
$15 ($3 solder paste, + $12 40x microscope with shipping). There are some items on their site you may be wanting ( cheap flash drive etc), just tag the solder paste with your order. Nothing ventured ...