Great product!
My furry monster is very fussy with toys, and also he is a big boy, so I was worried not only whether he will like it but also if he will fit inside. Tunnel is very spacious though, and he absolutely loves it! Additionally, with two strategically placed holes I can easily reach inside to play with him. The brush at the entrance is a great idea as well, he uses it on the daily basis as well. Overall - I can honestly recommend it, also for the big cats.