My cat loves it! We moved from country to city so he pouted when he couldn’t go outside anymore.  He could still watch the birds while sitting on a window ledge; but it just wasn’t the same for an indoor/outdoor cat.  But our 3rd story city apt. Has a beautiful covered balcony and he has a 180 degree view , feels the breeze ruffle his fur, and quietly growls at people he doesn’t know—which is everyone but my husband and I!  I do suggest coating it with a water sealer and I’ve anchored it to the balcony.  Easy to assemble.