I like their stuff, and they've spotlighted me (and I won a SideKick on Instagram - you should too, check their site), but I've got zero pull in terms of discounts.
I have the RoadTrip and the DayTrip, so I've got your Backpacker surrounded. I opted for the slightly bigger RoadTrip because I know there will be occasions when I need to but the 150-500mm on it. It's a solid tripod and it's the one that stays in my car. With a heavy body and lens it can get a little wobbly at full extension, but if you hang some weight from the center hook that clears up immediately (you should do that anyway). The 8.8 lb. limit of the Backpacker made me question its usability in some situations. The RoadTrip is only 3 inches longer, 1 pound heavier, but will hold twice the weight and extends a full 10 inches further. And it will convert to a monopod, which is kinda cool when taking it on trips. Which you get really depends on your needs, but what started as my "second tripod" has become my go-to.
Regardless, they make some quality stuff - it's really just a Benro painted flashy for the US market (go figure).