Timmy was rescued as a stray and caged at a shelter for year and a half. He was initially shy but as he became comfortable loves looking out window and showed  interest in going out. We purchased the deck and patio play pen which he immediately walked into. We feed the birds and squirrels so he cant get enough of his front row seat! I found it hard to manipulate the clip so my husband modified by attaching carabiner clips instead. Very happy with this purchase.