Alright, well after a lot of searching about, I found a lot of basic panels for about the same watts would equal about the same as the harbor freight kit, give or take after shipping and such. Also after reading a lot of reviews it seems the charge controller seems to be the biggest thing that might cause problems, and it seems like it shouldn't be too expensive to get one to replace it if need be. So I ended up getting it. Put it all together today, testing things out, I'm in Spokane, WA it was about noon, and the panel angle I certainly didn't measure I just set up the legs on the kit, but it was certainly putting out nearly 16 volts at 3 amps so it seems to be working correctly.
Still looking for all sorts of information regarding battery charge times and such. Which is fairly hard to put things together. The battery I got with it is just a 35 amp hour battery, but I currently don't plan on using much more then charging some usb devices off it, and perhaps when the weather gets better and I have outside get togethers using the light kit that came with it on my patio. I'll be looking at keeping an eye on it and seeing how things go.