Using a Mesh Window is very good for concealment....but, I found I had to replace my mesh because the mfg. had over-laid the mesh with leafy patterns, which made it very difficult to see the animal in-line with my pin sight. Best to have just plain old mesh with NO pattern to block an otherwise well placed shot. Hope this helps.
One other thing: Do consider using a folding chair with a back support. I bought a metal chair with a cushioned seat for .50 cents. The chair is metal, and it really takes the fatigue out of sitting for long periods ..... a swivel chair with back would be even better....I just have not found one at a garage sale......yet. I really dont like shooting thru the mesh....and I wish someone WITH EXPERIENCE could tell me that using the mesh is not all that necessary.....anyone have an experienced opinion on this....I would greatly like to hear from you.......thanks.