While the toytec is not bad, I feel there are better options. Toytec sells the radflo kit for the same price, and I feel the radflo is a better setup. I run them, right now and enjoy them. Others have had some problems with the radflos being noisy, and clunk over bumps. The nice thing about them though, is they are completely rebuildable and tunable like any high end coilover, so you can tune the ride for your truck. The toytec boss kit uses a generic, non- rebuildable shock for the front coilovers, so there is no tunability. Id also look at the Icon stage 1 kit, which is right around $500 more, but is definitely worth it. There are a large number of people running them here, and Im sure one of them will chime in.
Basically, it comes down to how you want to use your truck, and your budget. If you plan to offroad it a lot, Id definitely go with a higher end coilover, but if it sees a lot of street with a little offroad, save some bucks and get the toytec boss kit. Hope that helps.