I have a Toytec set up and its not that impressive. It isn't any different than the OME set up, and the springs bind in the upper arms under full droop. I would not recommend their product.
I don't have experience on these trucks with higher end stuff, but IMO, the only advantage to the higher end stuff is the rebuildable part, unless you actually tune the shocks.
If you buy a high end king, billstein, etc.. coil over, and properly tune the shock and spring combo to the driving you do, you will notice an incredible increase in performance. Having seen the results in the rock crawling world, it really is a thing to behold. HOwever, that usually means several builds and tear down's of the coilover, and test drives to figure out what you need to change. It is a fair amount of work, but worth it.
However, OME, Toytec, or the others are very much an upgrade over stock. My 99 4runner rides a TON better on the new suspension than it did on the stock suspension, and on the dirt, it is a far superior ride.
Personally, if I were to buy a brand new Tacoma or 4runner right now, I would be ditching the stock suspension as soon as I could.