I have tried several different traction boards, include PSP boards. I have also used several forms of sand ladders that worked well enough. I settled on Maxtrax and now own a second pair for my pickup truck. I live in Nevada and we have sand, mud, and snow. We also have a condition in our dry lake beds, washes, and basins where the top layer of sand/mud solidifies. When you drive across it sometimes it supports the weight of the vehicle (until you stop) and sometimes you break through until you stop, then sink up to your axles. Quite challenging to extract yourself.
I had a cheap pair of sand ladders that I bought at Costco. I think I paid around $20 for each track. If you were in sand, and snow, they were good. No so in mud. I was given a pair of Smittybilt, but they were cheaply made and broke the first time out. The PCP boards worked well in sand, but snow and mud they were too slick.
I tried a pair of Maxtrax, after hearing the hype and seeing them demo at the Overland Expo. The first time I tried them was in about three feet of snow. The road had ruts in the lower layers of snow and we were stuck with the truck. The truck has Toyo All Terrain tires. The wife got the truck stuck, when I arrived, she was really stuck. I dug out some snow and stuck in the Maxtraxs. No joy. So I ended up jacking up the truck enough to slip chains on and drove right out like it was nothing. This brings up a very good point that chains (not those girly cables, but manly chains) work in snow, sand, and mud. If you're just starting out or traction boards are not on your priority list right now, you can pull out those winter chains and they'll most likely get you out of the hole.
Note: If you are jacking up you car/truck/SUV in snow, mud, or sand you need to have a stable and sturdy base under it. These are easy to make, light, and store well. The simplest, I've seen was a 12"x12" piece of 3/4" plywood. The guy drilled holes in it and used spikes (really large galvanized nails) to further stabilize the platform. If he didn't need the spikes, he didn't use them. He also used the spikes as tent pegs from time to time.
Next time out, it was mud and sand. The Maxtraxs worked as advertised. However, don't spin your wheels! This burns of the lugs, but you can replace them with metal lugs really easy. There was a comment above that the lugs eat your tires, but I have never seen that. I would think that the metal lugs would give a better grip. But then again, they could crack your Maxtraxs. I would be interesting to hear from someone who has experience with the metal lugs.
And lastly, I had to cross some really deep erosions across the trail. I stacked two Maxtraxs on each side and drove over the ditches with no damage to the boards.
Last thoughts: I bought my first pair of Maxtraxs in Tan to match my 2011 Jeep JKUL, and my second pair in Black. I cannot recommend the tan color in the desert. Really hard to find the Maxtraxs in the sand. Haven't had an issue with the Black, but I recommend just getting them in orange. Both came with orange leashes, which on more than one occasion was all I could find. Typically, I put the Maxtraxs on the Gobi roof rack and lash them down with ratchet straps. Initially they were just there in the sun, but I became concerned with the sun damaging the plastic, so I wrapped them in a piece of heavy weight canvas I found. I've found that the canvas was a great addition as a ground cloth while you dig under the tires and vehicle in general.
Hope to see or hear you on the trail.