Your wishes are granted. I just finished building the orange and yellow ones, my brother built the red and purple. We didn't do the green as we plan on sending that to someone else, so sorry about that.
Anyways, the pieces themselves are quite durable. Too durable in fact. They are very hard and hurt to put together. The big white spikes are completely solid, unlike the more flexible ones of true Lego. The spikes are hard and sharp enough to cut a person's hand open, as I found out from experience.
However their clutch power is not good. While most of them stay together if you shake them really hard (minus the red one), put small amounts of pressure anywhere on them and they fall apart. Especially bad on the tails of course, but that's expected. Unless it's flat panels or even the triangle wedges, which are near impossible to remove. Similar situation with the pins, once placed in it is impossible to remove.
And the plastic itself is not as refined. There are little plastic flakes coming off pieces with peg holes and misshaped pieces all around. They are not as squared as Lego pieces and do not line up properly. Many pieces have miscolorings, smudges of some greyish-brown in many of the pieces, almost look like burn marks to me. Some of the visor pieces are also beat and scratched up. The pegs are also really poorly molded, having most of these errors. However I was unable to take pictures of them as my camera could not focus on them.
And the instructions, my goodness the instructions. They are terrible, don't even bother trying to use them. The box is all you need to build them and more accurate. So overall, not great. Pics of the dino models and scans of the instructions below.