I have been up the tree about 5 times with the integrated system so here is my take on it so far:

Pros: It is simple to use. You have good freedom of movement on the stand. The vest has strong deep pockets.

Cons: The retractor module is too heavy but I would assume that it has to be. The retractor unit is also somewhat bulky but it stows in a vest pocket. The fitting diagram on the upper strap makes noise (I removed it).

Overall, the unit is heavier than I would like. However, it gets easier to use each time and I prefer it to the others that I own.

My recommendation: I definitely recommend a vest but believe that I would like one better without the retractor.